What is the situation below an example of?

Development influenced by environment.

Read the scenario below...

Lack of adequate oxygen supply to the muscle.

Which statement best describes these cells?

Both cell A and B use energy released from ATP.

The process represented by the arrow will ensure that the ....

Zygote contains a complete set of genetic information.

Read the scenario below...

The organisms would survive because materials would cycle.

Read the scenario below...

Cut the DNA at a specific location.

Which statement concerning the evolution of the species is supported by the diagram below?

Species B and C can be found in today's environments.

What is one reason that a liver cell would not be able to make substance "C" in the diagram?

DNA was altered, making the cell unable to produce enzyme y.

One negative result from asexual reproduction is...

Decreased biodiversity within the species.

Why is a mushroom considered a heterotroph?

It obtains nutrients from its environment.

Read the scenario below...

Both yellow and blue molecules are small.

Which statement best describes section II of the graph?

The rate of reproduction exceeds the death rate.

This process can be used to explain...

Origin of new combinations of traits in offspring.

Read the scenario below...

Insert the gene for the protein from speciesB into species A

The trend shown in the graph would most likely result in...

Increase in demand for land use.

Which statement is not a valid conclusion based on the data.

The smaller the crocodile is, the larger the prey.

Which statement best explains the final appearance of these tomato plants?

Expression of gene A varies with the environment.

Which statement best explains the reason for the increased number of rabbits as explained below

There are few native predators of rabbits.

The differences observed in bird beaks are most likely due to...

Selection for different beaks that best suit diff. niches.

Which statement best describes the change in the ecosystem stability shown in the graph?

Stable ecosystem can be altered, then can recover.

On the DNA fingerprint, Band "X" represents the...

Smallest fragment of DNA that traveled the fastest.

Read the scenario below...

Behaviors that lead to reproductive success have evolved.

In what way are photosynthesis and cellular respiration similar?

They both involve organic and inorganic molecules.

Read the scenario below....

Test a third group that does not receive the supplement.

After 2 hours, the color of the liquid in the beaker did not change. This shows that...

Starch did not pass out of the artificial cell.

Read the scenario below...

Genetically inherited from parents.

studbud

Biology Keystone Review

100 termsStudBud Administration136 plays

A comprehensive review of material to be tested on the PEnnsylvania State Biology Keystone Examinations. #keystone #biology #review

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
What is the situation below an example of?
Production of new organisms by environmental engineering.
Faulty genes found in aquatic organisms.
Development influenced by environment.
Production of gametes.
2
Read the scenario below...
Mutation by deletion of genetic material
Recombination of chromosomes
Sorting of genes
Genetic engineering
3
The dashed line indicating the carrying capacity for mouse population is shown in which graph?
2
3
1
4
4
The failure to regulate the pH of the blood can affect the activity of...
Enzymes that clot blood.
Red blood cells that make antibodies.
Chlorophyll that carries oxygen in the blood.
DNA that controls starch digestion in the blood.
5
Read the scenario below...
Increased glucose production in the muscle.
Lack of adequate oxygen supply to the muscle.
The runner running too slowly.
The runner warming up before running.
6
Which statement best describes these cells?
Both cell A and B use energy released from ATP.
Both cell A and B produce antibiotics.
DNA would not be found in either cell A or B.
Cell B lacks vacuoles why cell A has them.
7
The process represented by the arrow will ensure that the ....
Zygote contains half of the genetic information.
Zygote contains a complete set of genetic information.
Gametes contain a complete set of genetic information.
Gametes contain half of the genetic information.
8
Read the scenario below...
The water temperature would rapidly decrease
The rate of reproduction of the fish would be affected
The organisms would survive because materials would cycle.
The process of respiration in the snail would decrease
9
Read the scenario below...
Cut the DNA at a specific location.
Alter the DNA sequence in the segment.
Move the DNA to a different organism.
Copy the DNA for protein synthesis.
10
Essential materials needed for development are transported to the human fetus through the...
Reproductive hormones
Egg cell
Ovaries
Placenta
11
Which statement concerning the evolution of the species is supported by the diagram below?
Species A and B evolved form a common ancestor and are alive
Species A and D evolved from E.
Species B and C can be found in today's environments.
Species A and C can still interbreed.
12
Based on its preferred food, species B would be classified as a....
Carnivore
Parasite
Decomposer
Producer
13
What is one reason that a liver cell would not be able to make substance "C" in the diagram?
Excess of enzyme X resulted in a decrease in substance B.
DNA was altered, making the cell unable to produce enzyme y.
Mutation caused change in ability of the cell to use "C"
Excess energy for step 2 prevented conversion of b to c
14
Read the scenario below...
4
1
2
3
15
What do these molecules most likely represent?
Protein and Chromosome
Antibody and Hormone
Receptor and Hormone
Carbohydrate and Amino Acid
16
One negative result from asexual reproduction is...
Decreased biodiversity within the species.
Decreased number of eggs used.
Increased number of males produced.
Increased gene combinations.
17
Tissues develop from a zygote as a direct result of the process of...
Mitosis and Differentiation
Mitosis and Meiosis
Fertilization and Differentiation
Fertilization and Meiosis
18
Which statement is best supported by the theory of evolution?
1
3
2
4
19
Read the scenario below...
Skin cells of either parent.
Gametes of either parent.
Only the nerve cells of the father.
All the body cells of both parents.
20
Read the scenario below...
1
4
3
2
21
Why is a mushroom considered a heterotroph?
It divides by mitosis.
It manufactures its own food.
It obtains nutrients from its environment.
It transforms light energy into chemical energy.
22
Read the scenario below...
1
2
4
3
23
Read the scenario below...
Both yellow and blue molecules are large.
Both yellow and blue molecules are small.
Yellow molecules are large, blue molecules are small
Yellow molecules are small, blue molecules are large.
24
Which statement best describes section II of the graph?
The rate of reproduction is slower than in Section I.
The population has reached carrying capacity.
The population is greater than the carrying capacity.
The rate of reproduction exceeds the death rate.
25
This process can be used to explain...
Why offspring are genetically identical to their parents.
Why offspring physically resemble their parents.
Origin of new combinations of traits in offspring.
Process of differentiation in offspring
26
Read the scenario below...
Insert the gene for the protein from speciesB into species A
Cross species A and a fungus to start synthesis of protein
Mutate fungal DNA & introduce it into species B
Add DNA from species B into the soil around species A
27
The trend shown in the graph would most likely result in...
Decrease in air pollution.
Decreased demand for deforestation.
Increase in demand for land use.
Increase in available fresh water.
28
Read the scenario below...
4
2
3
1
29
Which statement is not a valid conclusion based on the data.
Group B has no preference between reptiles and birds.
Overharvesting of fish could have a negative impact on C
Spraying insecticides would have the biggest impact on A.
The smaller the crocodile is, the larger the prey.
30
Which statement best explains the final appearance of these tomato plants?
Expression of gene B varies with the presence of light.
Expression of gene A is not affected by light.
Expression of gene A varies with the environment.
Gene B is only expressed in darkness.
31
Which statement best explains the reason for the increased number of rabbits as explained below
Rabbits have a high metabolic rate.
Additional rabbit species have been introduced.
There is an increase in rabbit competitors.
There are few native predators of rabbits.
32
Read the scenario below...
DNA Molecules
Foreign Antibodies
Foreign Antigens
Pathogenic Microbes
33
The differences observed in bird beaks are most likely due to...
Asexual reproduction of these finch species.
Selection for different beaks that best suit diff. niches.
Genetic recombination associated with mitotic cell division.
Genetic engineering of DNA of each species.
34
A process that would result in the movement of these molecules out of the cell requires...
Antibodies
DNA
ATP
Antigens
35
Which statement best describes the change in the ecosystem stability shown in the graph?
Stable ecosystems cannot recover after it is altered.
Stable ecosystem can be altered, then can recover.
Stability of an ecosystem remains unchanged.
An ecosystem remains unchanged as stability decreases.
36
Which row in the chart identifies the lettered substances in this process?
1
2
3
4
37
Every cell in each of these structures contains...
Equal amounts of ATP
Organelles for the synthesis of glucose
Proteins that are identical
Identical genetic information
38
A serious threat to biodiversity is...
Maintenance of Food Chains
A stable population size.
Habitat Destruction
Competition within a species.
39
What is the main function of a vacuole in a cell?
Synthesis of Molecules
Coordination
Storage
Release of Energy
40
A species that lacks the variation to adapt to changes in environment is more likely to...
Develop resistance to diseases.
Begin to reproduce sexually.
Become extinct over time.
Develop many mutated cells.
41
On the DNA fingerprint, Band "X" represents the...
Smallest fragment of DNA that traveled the fastest.
Largest fragment of DNA that traveled the slowest.
Smallest fragment of DNA that traveled the slowest.
Largest fragment of DNA that traveled the fastest.
42
Letters A and B are best represented by which row in the chart?
2
1
4
3
43
Which row in the chart correctly identifies the cause of each type of mutation?
3
1
2
4
44
Which situation indicates that a disruption of homeostasis has taken place?
1
3
2
4
45
The failure of chromosomes to separate during meiosis is known as
independent assortment
Nondisjunction
Synapsis
None of the above
46
Read the scenario below...
Homeostasis in an organism is influenced by physical traits
Unusual courtship behaviors lead to extinction.
Some organisms are better adapted for asexual reproduction.
Behaviors that lead to reproductive success have evolved.
47
In what way are photosynthesis and cellular respiration similar?
They both require oxygen and produce carbon dioxide.
They both require sunlight.
They both involve organic and inorganic molecules.
They both occur in chloroplasts.
48
Read the scenario below....
Test the supplement on both groups for 5 instead of 10 weeks
Test only one group with 200mg of the supplement.
Test a third group that receives 150mg of the supplement
Test a third group that does not receive the supplement.
49
Read the scenario below...
Maintain homeostasis.
Produce light energy.
Decompose organic matter.
Synthesize materials.
50
After 2 hours, the color of the liquid in the beaker did not change. This shows that...
Glucose molecules combined to produce starch in the cell.
Starch did not pass out of the artificial cell.
Starch was digested to glucose in the artificial cell.
Glucose moved from artificial cell to beaker.
51
Read the scenario below...
Genetically inherited from parents.
A disadvantage to the survival of the species.
Learned by watching members of their species.
A direct result of the type of food the bird eats.
52
What is the change described below an example of?
Ecological Succession
Heterotrophic Nutrition
Genetic Variation
Biological Evolution
53
Read the scenario below...
A variety of microbes that will attack the virus.
Live bacteria that ingest viruses.
Weakened viruses associated with the infection.
White blood cells from an infected individual.
54
Which process results in the formation of structure "X?"
Cloning
Mitosis
Recombination
Meiosis
55
Which statement best describes a controlled experiment?
Eliminates the need for dependent variables.
Avoids the use of variables.
Tests the effect of a single independent variable.
Shows effect of dependent variable on independent variable.
56
What is the average length of a single cell in micrometers (μm)?
10μm
200μm
100μm
2,000μm
57
If 15% of a DNA sample is made up of thymine, T, what % is made up of cyosine, C?
35%
70%
15%
85%
58
Which statement is a valid conclusion that can be drawn from this diagram?
Sponges were the last new species to appear on Earth.
Insects are more complex than mammals.
Earthworms and sea stars have a common ancestor.
Snails appeared on earth before Corals.
59
The human heart and lungs contain cells that...
3
4
1
2
60
Which organism carries out autotrophic nutrition?
Deer
Cricket
Hawk
Grass
61
What is the dependent variable in this experiment?
Amount of soda given to each group.
Age of participants in each group.
Pulse rate of each group.
Type of soda given to each group.
62
The section of DNA being used to make the strand of mRNA is known as a...
Carbohydrate
Chromosome
Ribosome
Gene
63
Even though identical twins have the same genetic material, they develop diff. traits because..
Mutations may have occurred before the zygote divided
Each twin receives diff chromosomes from the egg
One twin may only have genes from the father
Some genes may be switched on or off
64
Read the scenario below...
2
4
1
3
65
If injury occurred to the structure labeled A, the most likely result would be a problem with
Production of gametes.
Delivery of sperm.
Excretion of urine.
Production of hormones.
66
What is an appropriate title for this diagram?
A Food Chain
Energy Flow in a Community
Biological Evolution
Ecological Succession
67
Which two species would most likely be able to live in the same habitat without competition?
B and D
A and C
C and E
B and C
68
A limiting factor unique to a field planted with corn year after year is most likely...
Soil Nutrients
Water
Sunlight
Temperature
69
Energy from organic molecules can be stored in ATP molecules as a direct result of the process
Cellular Reproduction
Diffusion
Cellular Respiration
Digestion
70
Which level includes organisms that receive their energy from level B?
B
A
D
C
71
Read the scenario below...
2
1
3
4
72
Read the scenario below...
Oxygen
Glucose
Protein
Starch
73
Which pair of organisms would most likely compete for the same ecological niche?
Bacteria and Fungi
Tree and Fungi
Deer and Bacteria
Deer and Wolf
74
Read the scenario below...
4
2
3
1
75
Which statement concerning the process shown below is correct?
This is respiration and the primary source of energy is sun.
This is photosynthesis and primary energy source is sun.
Process uses solar energy to convert oxygen to carbondioxide
This converts organic compounds to solar energy in the air.
76
The role of the snail may be described as a...
Parasite
Producer
Decomposer
Host
77
The four different types of beaks shown are most likely the result of...
unchanging environmental conditions
patterns of behavior learned from their parents
Gene manipulation
natural selection
78
Decomposers are necessary in an ecosystem because they...
Can rapildy reproduce and evolve.
Provide energy for plants by the process of decay.
Make inorganic materials available to plants.
Produce food for plants by the process of photosynthesis.
79
Which statement correctly describes the offspring?
They result without the union of gametes.
They vary genetically from the parent.
They are produced by the union of gametes.
They obtain nourishment from a placenta.
80
What inference best describes these two bird species?
They have the same reproductive behavior.
They do not compete for nesting sites.
They use the same tree at the same time for nesting.
They build the same type of nests.
81
Which phrase, if placed in box X, would complete the flowchart shown below?
Increased use of starch in root cells.
Decreased ATP in root cells.
Decreased concentration of oxygen in leaf cells.
Increased concentration of glucose in leaf cells.
82
Which set of terms identifies the procedure shown and the substance produced by this procedure?
Selective Breeding - Growth Hormone
Genetic Engineering - Insulin
Cloning - Antibiotics
Replicating - Glucose
83
The level represented by X is composed of...
Complex, energy-rich inorganic molecules.
Folded chains of glucose molecules.
4 Types of base subunits.
20 different kinds of amino acids.
84
Which statement concerning the rate of cell division in the bacterial culture is correct?
Cell division is most rapid at 18o between 4-8 hours.
Cell division occurs at the same rate no matter the temp
Cell division is most rapid at 37o between 6-8 hours.
Cell division is most rapid at 25o between 20-24 hours.
85
In the cell below, which structure is responsible for excretion of most cellular wastes?
B
C
A
D
86
In the energy transfer from the Sun to ecosystems, what molecule is the first to store energy?
Protein
Fat
DNA
Glucose
87
This laboratory setup would most likely be used to demonstrate...
Diffusion
Active Transport
Carbohydrate Synthesis
Dehydration
88
Which body system is correctly paired with its function?
4
1
2
3
89
The level of biodiversity in ecosystem A is high because it has...
least variety of energy levels.
greatest number of decomposers.
least number of ecological niches.
greatest variety of genetic material.
90
Which energy pyramid shows the energy relationships between 3 organisms in the food web?
1
2
3
4
91
Read the scenario below...
1
3
4
2
92
Which level includes organisms that get their energy from a source other than organisms?
B
A
D
C
93
Which statement is a possible explanation for the changes shown?
Species B is better adapted to this environment.
Species A is a predator of Species B
Species B is a parasite that has benefited species A.
Species A is better adapted to this environment.
94
Read the scenario below...
More oxygen is delivered to muscle cells.
The rate of digestion increases.
No hormones are produced.
Blood cells are excreted at a faster rate.
95
The dashed line in the diagram represents...
A digestive process.
Cellular differentiation.
Recycling of organic chemicals.
A feedback mechanism.
96
Even though identical twins have the same genetic material, they develop diff. traits because..
Each twin receives diff chromosomes from the egg
Mutations may have occurred before the zygote divided
Some genes may be switched on or off
One twin may only have genes from the father
97
Which concept is represented in the diagram?
Dynamic Equilibrium
Extinction
Succession
Survival of the Fittest
98
Which levels of biological organization do stages 2 and 7 have in common?
Cells and Organs
Cells and Tissues
Cells and Organelles
Tissues and Organelles
99
The total number of bases represented by the letter A (in & out of boxes) will be...
4
1
3
2
100
Read the scenario below...
Dispose of metabolic wastes
Release energy from nutrients
Store information
Build proteins

Biology Keystone Review Flashcards | StudBud

Biology Keystone Review

100 termsStudBud Administration136 plays

A comprehensive review of material to be tested on the PEnnsylvania State Biology Keystone Examinations. #keystone #biology #review

Flashcards100 cardsFPractice quizPHost liveL

Questions 100

Answers

1
What is the situation below an example of?
Production of new organisms by environmental engineering.
Faulty genes found in aquatic organisms.
Development influenced by environment.
Production of gametes.
2
Read the scenario below...
Mutation by deletion of genetic material
Recombination of chromosomes
Sorting of genes
Genetic engineering
3
The dashed line indicating the carrying capacity for mouse population is shown in which graph?
2
3
1
4
4
The failure to regulate the pH of the blood can affect the activity of...
Enzymes that clot blood.
Red blood cells that make antibodies.
Chlorophyll that carries oxygen in the blood.
DNA that controls starch digestion in the blood.
5
Read the scenario below...
Increased glucose production in the muscle.
Lack of adequate oxygen supply to the muscle.
The runner running too slowly.
The runner warming up before running.
6
Which statement best describes these cells?
Both cell A and B use energy released from ATP.
Both cell A and B produce antibiotics.
DNA would not be found in either cell A or B.
Cell B lacks vacuoles why cell A has them.
7
The process represented by the arrow will ensure that the ....
Zygote contains half of the genetic information.
Zygote contains a complete set of genetic information.
Gametes contain a complete set of genetic information.
Gametes contain half of the genetic information.
8
Read the scenario below...
The water temperature would rapidly decrease
The rate of reproduction of the fish would be affected
The organisms would survive because materials would cycle.
The process of respiration in the snail would decrease
9
Read the scenario below...
Cut the DNA at a specific location.
Alter the DNA sequence in the segment.
Move the DNA to a different organism.
Copy the DNA for protein synthesis.
10
Essential materials needed for development are transported to the human fetus through the...
Reproductive hormones
Egg cell
Ovaries
Placenta
11
Which statement concerning the evolution of the species is supported by the diagram below?
Species A and B evolved form a common ancestor and are alive
Species A and D evolved from E.
Species B and C can be found in today's environments.
Species A and C can still interbreed.
12
Based on its preferred food, species B would be classified as a....
Carnivore
Parasite
Decomposer
Producer
13
What is one reason that a liver cell would not be able to make substance "C" in the diagram?
Excess of enzyme X resulted in a decrease in substance B.
DNA was altered, making the cell unable to produce enzyme y.
Mutation caused change in ability of the cell to use "C"
Excess energy for step 2 prevented conversion of b to c
14
Read the scenario below...
4
1
2
3
15
What do these molecules most likely represent?
Protein and Chromosome
Antibody and Hormone
Receptor and Hormone
Carbohydrate and Amino Acid
16
One negative result from asexual reproduction is...
Decreased biodiversity within the species.
Decreased number of eggs used.
Increased number of males produced.
Increased gene combinations.
17
Tissues develop from a zygote as a direct result of the process of...
Mitosis and Differentiation
Mitosis and Meiosis
Fertilization and Differentiation
Fertilization and Meiosis
18
Which statement is best supported by the theory of evolution?
1
3
2
4
19
Read the scenario below...
Skin cells of either parent.
Gametes of either parent.
Only the nerve cells of the father.
All the body cells of both parents.
20
Read the scenario below...
1
4
3
2
21
Why is a mushroom considered a heterotroph?
It divides by mitosis.
It manufactures its own food.
It obtains nutrients from its environment.
It transforms light energy into chemical energy.
22
Read the scenario below...
1
2
4
3
23
Read the scenario below...
Both yellow and blue molecules are large.
Both yellow and blue molecules are small.
Yellow molecules are large, blue molecules are small
Yellow molecules are small, blue molecules are large.
24
Which statement best describes section II of the graph?
The rate of reproduction is slower than in Section I.
The population has reached carrying capacity.
The population is greater than the carrying capacity.
The rate of reproduction exceeds the death rate.
25
This process can be used to explain...
Why offspring are genetically identical to their parents.
Why offspring physically resemble their parents.
Origin of new combinations of traits in offspring.
Process of differentiation in offspring
26
Read the scenario below...
Insert the gene for the protein from speciesB into species A
Cross species A and a fungus to start synthesis of protein
Mutate fungal DNA & introduce it into species B
Add DNA from species B into the soil around species A
27
The trend shown in the graph would most likely result in...
Decrease in air pollution.
Decreased demand for deforestation.
Increase in demand for land use.
Increase in available fresh water.
28
Read the scenario below...
4
2
3
1
29
Which statement is not a valid conclusion based on the data.
Group B has no preference between reptiles and birds.
Overharvesting of fish could have a negative impact on C
Spraying insecticides would have the biggest impact on A.
The smaller the crocodile is, the larger the prey.
30
Which statement best explains the final appearance of these tomato plants?
Expression of gene B varies with the presence of light.
Expression of gene A is not affected by light.
Expression of gene A varies with the environment.
Gene B is only expressed in darkness.
31
Which statement best explains the reason for the increased number of rabbits as explained below
Rabbits have a high metabolic rate.
Additional rabbit species have been introduced.
There is an increase in rabbit competitors.
There are few native predators of rabbits.
32
Read the scenario below...
DNA Molecules
Foreign Antibodies
Foreign Antigens
Pathogenic Microbes
33
The differences observed in bird beaks are most likely due to...
Asexual reproduction of these finch species.
Selection for different beaks that best suit diff. niches.
Genetic recombination associated with mitotic cell division.
Genetic engineering of DNA of each species.
34
A process that would result in the movement of these molecules out of the cell requires...
Antibodies
DNA
ATP
Antigens
35
Which statement best describes the change in the ecosystem stability shown in the graph?
Stable ecosystems cannot recover after it is altered.
Stable ecosystem can be altered, then can recover.
Stability of an ecosystem remains unchanged.
An ecosystem remains unchanged as stability decreases.
36
Which row in the chart identifies the lettered substances in this process?
1
2
3
4
37
Every cell in each of these structures contains...
Equal amounts of ATP
Organelles for the synthesis of glucose
Proteins that are identical
Identical genetic information
38
A serious threat to biodiversity is...
Maintenance of Food Chains
A stable population size.
Habitat Destruction
Competition within a species.
39
What is the main function of a vacuole in a cell?
Synthesis of Molecules
Coordination
Storage
Release of Energy
40
A species that lacks the variation to adapt to changes in environment is more likely to...
Develop resistance to diseases.
Begin to reproduce sexually.
Become extinct over time.
Develop many mutated cells.
41
On the DNA fingerprint, Band "X" represents the...
Smallest fragment of DNA that traveled the fastest.
Largest fragment of DNA that traveled the slowest.
Smallest fragment of DNA that traveled the slowest.
Largest fragment of DNA that traveled the fastest.
42
Letters A and B are best represented by which row in the chart?
2
1
4
3
43
Which row in the chart correctly identifies the cause of each type of mutation?
3
1
2
4
44
Which situation indicates that a disruption of homeostasis has taken place?
1
3
2
4
45
The failure of chromosomes to separate during meiosis is known as
independent assortment
Nondisjunction
Synapsis
None of the above
46
Read the scenario below...
Homeostasis in an organism is influenced by physical traits
Unusual courtship behaviors lead to extinction.
Some organisms are better adapted for asexual reproduction.
Behaviors that lead to reproductive success have evolved.
47
In what way are photosynthesis and cellular respiration similar?
They both require oxygen and produce carbon dioxide.
They both require sunlight.
They both involve organic and inorganic molecules.
They both occur in chloroplasts.
48
Read the scenario below....
Test the supplement on both groups for 5 instead of 10 weeks
Test only one group with 200mg of the supplement.
Test a third group that receives 150mg of the supplement
Test a third group that does not receive the supplement.
49
Read the scenario below...
Maintain homeostasis.
Produce light energy.
Decompose organic matter.
Synthesize materials.
50
After 2 hours, the color of the liquid in the beaker did not change. This shows that...
Glucose molecules combined to produce starch in the cell.
Starch did not pass out of the artificial cell.
Starch was digested to glucose in the artificial cell.
Glucose moved from artificial cell to beaker.
51
Read the scenario below...
Genetically inherited from parents.
A disadvantage to the survival of the species.
Learned by watching members of their species.
A direct result of the type of food the bird eats.
52
What is the change described below an example of?
Ecological Succession
Heterotrophic Nutrition
Genetic Variation
Biological Evolution
53
Read the scenario below...
A variety of microbes that will attack the virus.
Live bacteria that ingest viruses.
Weakened viruses associated with the infection.
White blood cells from an infected individual.
54
Which process results in the formation of structure "X?"
Cloning
Mitosis
Recombination
Meiosis
55
Which statement best describes a controlled experiment?
Eliminates the need for dependent variables.
Avoids the use of variables.
Tests the effect of a single independent variable.
Shows effect of dependent variable on independent variable.
56
What is the average length of a single cell in micrometers (μm)?
10μm
200μm
100μm
2,000μm
57
If 15% of a DNA sample is made up of thymine, T, what % is made up of cyosine, C?
35%
70%
15%
85%
58
Which statement is a valid conclusion that can be drawn from this diagram?
Sponges were the last new species to appear on Earth.
Insects are more complex than mammals.
Earthworms and sea stars have a common ancestor.
Snails appeared on earth before Corals.
59
The human heart and lungs contain cells that...
3
4
1
2
60
Which organism carries out autotrophic nutrition?
Deer
Cricket
Hawk
Grass
61
What is the dependent variable in this experiment?
Amount of soda given to each group.
Age of participants in each group.
Pulse rate of each group.
Type of soda given to each group.
62
The section of DNA being used to make the strand of mRNA is known as a...
Carbohydrate
Chromosome
Ribosome
Gene
63
Even though identical twins have the same genetic material, they develop diff. traits because..
Mutations may have occurred before the zygote divided
Each twin receives diff chromosomes from the egg
One twin may only have genes from the father
Some genes may be switched on or off
64
Read the scenario below...
2
4
1
3
65
If injury occurred to the structure labeled A, the most likely result would be a problem with
Production of gametes.
Delivery of sperm.
Excretion of urine.
Production of hormones.
66
What is an appropriate title for this diagram?
A Food Chain
Energy Flow in a Community
Biological Evolution
Ecological Succession
67
Which two species would most likely be able to live in the same habitat without competition?
B and D
A and C
C and E
B and C
68
A limiting factor unique to a field planted with corn year after year is most likely...
Soil Nutrients
Water
Sunlight
Temperature
69
Energy from organic molecules can be stored in ATP molecules as a direct result of the process
Cellular Reproduction
Diffusion
Cellular Respiration
Digestion
70
Which level includes organisms that receive their energy from level B?
B
A
D
C
71
Read the scenario below...
2
1
3
4
72
Read the scenario below...
Oxygen
Glucose
Protein
Starch
73
Which pair of organisms would most likely compete for the same ecological niche?
Bacteria and Fungi
Tree and Fungi
Deer and Bacteria
Deer and Wolf
74
Read the scenario below...
4
2
3
1
75
Which statement concerning the process shown below is correct?
This is respiration and the primary source of energy is sun.
This is photosynthesis and primary energy source is sun.
Process uses solar energy to convert oxygen to carbondioxide
This converts organic compounds to solar energy in the air.
76
The role of the snail may be described as a...
Parasite
Producer
Decomposer
Host
77
The four different types of beaks shown are most likely the result of...
unchanging environmental conditions
patterns of behavior learned from their parents
Gene manipulation
natural selection
78
Decomposers are necessary in an ecosystem because they...
Can rapildy reproduce and evolve.
Provide energy for plants by the process of decay.
Make inorganic materials available to plants.
Produce food for plants by the process of photosynthesis.
79
Which statement correctly describes the offspring?
They result without the union of gametes.
They vary genetically from the parent.
They are produced by the union of gametes.
They obtain nourishment from a placenta.
80
What inference best describes these two bird species?
They have the same reproductive behavior.
They do not compete for nesting sites.
They use the same tree at the same time for nesting.
They build the same type of nests.
81
Which phrase, if placed in box X, would complete the flowchart shown below?
Increased use of starch in root cells.
Decreased ATP in root cells.
Decreased concentration of oxygen in leaf cells.
Increased concentration of glucose in leaf cells.
82
Which set of terms identifies the procedure shown and the substance produced by this procedure?
Selective Breeding - Growth Hormone
Genetic Engineering - Insulin
Cloning - Antibiotics
Replicating - Glucose
83
The level represented by X is composed of...
Complex, energy-rich inorganic molecules.
Folded chains of glucose molecules.
4 Types of base subunits.
20 different kinds of amino acids.
84
Which statement concerning the rate of cell division in the bacterial culture is correct?
Cell division is most rapid at 18o between 4-8 hours.
Cell division occurs at the same rate no matter the temp
Cell division is most rapid at 37o between 6-8 hours.
Cell division is most rapid at 25o between 20-24 hours.
85
In the cell below, which structure is responsible for excretion of most cellular wastes?
B
C
A
D
86
In the energy transfer from the Sun to ecosystems, what molecule is the first to store energy?
Protein
Fat
DNA
Glucose
87
This laboratory setup would most likely be used to demonstrate...
Diffusion
Active Transport
Carbohydrate Synthesis
Dehydration
88
Which body system is correctly paired with its function?
4
1
2
3
89
The level of biodiversity in ecosystem A is high because it has...
least variety of energy levels.
greatest number of decomposers.
least number of ecological niches.
greatest variety of genetic material.
90
Which energy pyramid shows the energy relationships between 3 organisms in the food web?
1
2
3
4
91
Read the scenario below...
1
3
4
2
92
Which level includes organisms that get their energy from a source other than organisms?
B
A
D
C
93
Which statement is a possible explanation for the changes shown?
Species B is better adapted to this environment.
Species A is a predator of Species B
Species B is a parasite that has benefited species A.
Species A is better adapted to this environment.
94
Read the scenario below...
More oxygen is delivered to muscle cells.
The rate of digestion increases.
No hormones are produced.
Blood cells are excreted at a faster rate.
95
The dashed line in the diagram represents...
A digestive process.
Cellular differentiation.
Recycling of organic chemicals.
A feedback mechanism.
96
Even though identical twins have the same genetic material, they develop diff. traits because..
Each twin receives diff chromosomes from the egg
Mutations may have occurred before the zygote divided
Some genes may be switched on or off
One twin may only have genes from the father
97
Which concept is represented in the diagram?
Dynamic Equilibrium
Extinction
Succession
Survival of the Fittest
98
Which levels of biological organization do stages 2 and 7 have in common?
Cells and Organs
Cells and Tissues
Cells and Organelles
Tissues and Organelles
99
The total number of bases represented by the letter A (in & out of boxes) will be...
4
1
3
2
100
Read the scenario below...
Dispose of metabolic wastes
Release energy from nutrients
Store information
Build proteins