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Mod Biology Final Exam Review Flashcards | StudBud
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Mod Biology Final Exam Review
Mod Biology Final Exam Review
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#Evolution
Flashcards
69 cards
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Practice quiz
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Host live
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Questions
69
Answers
1
Grassland food web: grass is eaten by rabbits & rabbits are eaten by foxes. If disease decreases rabbit population, then
It will remain unchanged
It will decrease due to loss of a food source
It will increase due to less competition
2
During meiosis, chromosomes trade pieces in crossing over. Why is this important?
Helps repair broken cells through mitosis
Makes all cells the same, so everyone is identical.
Creates genetic variety: unique organisms can survive environmental change
3
Which is an example of an adaptation?
People choosing which animals live
Camels have long eyelashes and can close their noses during sandstorms.
A tree losing its leaves in fall
4
If B = brown eyes. What is the chance for brown eyes
4/4 or 100%
2/4 or 50%
1/4 or 25%
5
Which is an example of asexual reproduction?
A human baby being born
A flower being pollinated
A bacteria splitting into two identical bacteria
6
Hetero means different; which is Heterozygous?
Gg
gg
GG
7
What happens during crossing over in meiosis?
Chromosomes disappear
Cells make exact copies of DNA
Chromosomes trade pieces and mix genes
8
Evidence of evolution found by scientists suggests that populations of living organisms have
common names
common body shape
common ancestors
9
What is the best definition of evolution?
The way plants grow in the sun
The way animals learn to hunt
The process by which species change over time
10
What do you inherit from your parents that decides your traits?
Cells
Genes
Muscles
11
Which describes sexual reproduction?
One parent makes offspring that are all different
One parent makes exact copy (identical) of itself
Two parents mix DNA to make a new organism
12
Homo means same, so which is Homozygous recessive?
gg
Gg
GG
13
Which pair of chromosomes would show that a person is biologically male?
XO
XX
XY
14
Trees, fungus, decomposing tree, deer, humans, roses are all examples of...
abiotic factors
biotic factors
15
If B = brown eyes. What is the chance for blue eyes?
3/4 or 75%
2/4 or 50%
1/4 or 25%
16
What is a trait?
A characteristic passed from parents to offspring
an organisms job in its environment
a learned skills
17
3rd stage of Mitosis: Chromsomes are pulled
apart
by spindle fibers
Metaphase
Telophase
Anaphase
18
What happens during interphase?
Chromosomes line up
DNA is copied and the cell grows
The cell divides into two
19
Which organism is a
producer
?
an omnivore that eats plants and animals
a plant that provides energy for other living things
Breaks down dead plants and animals
20
How did natural selection help moths survive during the Industrial Revolution?
Dark-colored moths were easier for birds to see and catch
Dark-colored moths were easier for birds to see and catch
Moths stopped flying
21
What is the main purpose of meiosis?
To make exact copies of body cells
To create sperm and egg cells for reproduction (new babies!)
To grow bacteria
22
Which is a phenotype?
BB
Hazel eyes
Bb
23
Which of the following best describes an ecosystem?
All the living and nonliving things in an area working together
Only the plants in a forest
A group of the same animals living together
24
What does a Punnett square help predict?
The outcome of a child’s traits
The structure of a cell
Blood pressure
25
Which pair of chromosomes would show that a person is biologically female?
XY
XO
XX
26
Dad and mom are both heterozygous for Brown hair (Bb). Predict the missing cross.
bb
BB
Bb
27
Human DNA: CAT CCC CAC CAA. Which organism is most closely related?
Cat: ATG CTC CCG CCC
Monkey: CAT CCC CAC CGG
Dog: ATG CTC CCG CAC
Wolf: ATG CAC CCG CAC
28
What is competition in an ecosystem?
Animals or plants fighting over food, water, or space
Animals working together to find food
Plants growing taller than others
29
Sunlight, water, temperature, rocks, rainfall are all examples of...
biotic factors
abiotic factors
30
Which of the following best shows natural selection in action?
A bear learning to stand
A rabbit digging a hole
A bird with a longer beak getting more food and surviving
31
1st phase of Mitosis: Chromosomes pair up and prepare for cell division
Metaphase
Prophase
Telophase
32
What happens when animals make more babies than the carrying capacity of their environment?
Some babies do not survive because there is not enough food or space
All babies survive because there is plenty of food and space
The environment grows bigger to hold more animals
33
Which describes asexual reproduction?
One parent makes offspring that are all different
One parent makes exact copy (identical) of itself
Two parents mix DNA to make a new organism
34
How does energy move through an ecosystem, and why is it important for living things?
Producers to consumers to decomposers, gives energy for all living things
From animals to the sun, and it helps plants grow.
Moves only between animals, and it helps them run faster.
35
Where does energy in most ecosystems come from?
Animals
Water
The sun
36
What is a habitat?
A food source
A place where a living thing lives
A hunting tool
37
2nd stage of Mitosis: Chromosomes line up in the middle of the cell
Metaphase
Cytokinesis
Interphase
38
What is a karyotype image used for?
To measure body temperature
To see a cell’s chromosomes and check for disorders
To track the cell cycle
39
What is natural selection?
A method of choosing leaders in animal groups
When people choose which animals breed
The process where nature “selects” organisms best suited to survive
40
After a volcano erupts and covers land in lava, mosses and lichens grow on the bare rock. What is the ecological change?
Secondary succession
Primary succession
Food chain formation
41
A bird sits on a cow and eats insects off its back. The bird gets food & the cow gets help. What is the relationship?
Mutualism
Predator and prey
Commensalism
42
What is a niche
where an organism lives
a group of the same kind of living thing
an organisms role or job in the environment
43
Which of the following could lead to evolution?
Learning new information
Sudden changes in an environment
Planting more trees
44
After two cell divisions, 4 new sex cells forms with 23 chromosomes in each — a mix from mom and dad. What is this?
Meiosis
Mitosis
DNA replication (copy)
45
Different animals live in different places because of where they were born and what they need to live.
biogeography
embryology
natural selection
46
If the brown eye allele is found in 75% of a population, what does that tell you about its allele frequency?
It has a low frequency
It is a rare allele
It has a high frequency
47
A rabbit eats grass. A fox eats the rabbit. What would happen if there were no more grass?
The rabbit might die, and the fox would have less food
The rabbit would have more food
The rabbit and fox would both increase
48
Survival of the fittest is not about how strong something is...
how fast an animal can run
how well it can survive its environment
it is about how weak something is
49
4th stage of Mitosis: Two new cells start to form
Interphase
Telophase
Prophase
50
What is the purpose of mitosis?
To make energy to move and breathe
how the body makes new cells for growth and repair
To make sex cells (sperm and egg) for reproduction
51
A forest is cut down to build houses. What might happen to the animals that lived there?
They may lose their homes and food
They will have more space
They will build new houses
52
Barnacles attach to whales to get free transport & food from water. The whale is not harmed. What is the relationship?
Mutualism
Commensalism
Competition
53
Which genotype is NOT recessive?
gg
Zz
rr
54
Why is variation in traits important for a species?
It helps some survive better in different environments
It helps animals look different only
It makes animals move faster
55
Study of embryos of organisms to show a common ancestor because of similarities in development
evolution
speciation
embryology
natural selection
56
What happens to traits that help an organism survive?
They disappear
They stay the same in only one animal
They are passed on to many offspring
57
What can happen if there are not enough resources like food or water?
Populations may shrink or move
The weather changes
All animals grow faster
58
how cells grow, copy DNA, and divide to make new cells
Cell Cycle
Mutating
Karyotyping
59
Is this karyotype normal or abnormal?
Normal, because there are 46 chromosomes
Abnormal, because there are 47 chromosomes & an extra chromosome at pair 21
60
Why are fossils important to the study of evolution?
They are cool to dig up and look at
They help scientists study planets
They show how life looked and changed over time
61
A dog gets 1/2 of its DNA from its mother and 1/2 from its father. What type of reproduction & what is the result?
Sexual; genetically identical offspring
Asexual; identical copy
Sexual; genetically unique offspring
62
A skin cell divides once and makes two identical cells with 46 chromosomes. What type of cell division is this?
Mitosis
Meiosis
Karyotyping
63
Which genotype is NOT dominant?
gg
Gg
GG
64
Which of the following best shows how genetics, evolution, and ecology are connected?
Organisms choose their traits based on their habitat.
Environment helps decide traits animals need to survive & have babies.
Genes stay the same even when the environment changes.
65
Which is a genotype?
Gg
Curved pinky
Brown hair
66
What is an adaptation?
A behavior or trait that helps an organism survive and reproduce
A type of food animals eat
An area where animals move for food
67
Body parts that have a
similar structure
but do
different jobs
in different animals
Embryology
Homologous Structures
68
Dad and mom are both heterozygous for Brown hair (Bb). Predict the missing cross.
bb
Bb
BB
69
Is this karyotype normal or abnormal?
Normal, because there are 46 chromosomes
Abnormal, there are 47 chromosomes & an extra chromosome at pair 21
