What is the difference between Independent and Dependent variables?

Independent can be tested and dependent can't

Why are the lynx population peaks always lower than the hare population peaks?

There are always more primary consumers than secondary.

What is a dependent variable?

a variable you measure in an experiment

What are chemical reactions

process that changes substances into other substances

a system of interlocking and interdependent food chains.

Identify the CONSUMERS in the food web:

Grasshopper, snake, shrew, frog, cricket, shrew, and hawk.

What is a population?

Many individuals-belong to the same species, live together

The available chemical energy in an ecosystem...

decreases as it flows from producer to consumer

type of symbiosis where both species benefit

The arrows on a food web...

...shows the direction the energy is moving to

Decomposers are important in an ecosystem because they...

Break down dead organisms & recycle nutrients into the soil

What is a primary Consumer? Ecology

The organism that eats the producer

what is an independent variable?

the one variable that you change.

What are the different variables?

Controlled, dependent, & independent

A source of energy, Carbohydrate

what are the four macromolecules

Proteins, Lipids, Carbohydrate, Nucleic acid

Define Covalent Bonds:

Bonds in which atoms share valence electrons.

Study of interactions among organisms in their environment

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Final Semester 1 Review

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Answers

1
What is the difference between Independent and Dependent variables?
Independent can be tested and dependent can't
Dependent is the only one we need
Both independent and dependent can be tested
2
Ionic Bonds occur between?
2 Metals
1 Metal and 1 Non metal
2 Nonmetals
3
atoms are the basic unit of?
electrons
energy
matter
protons
4
Why are the lynx population peaks always lower than the hare population peaks?
Lynx have higher reproductive rates.
Lynx are not as fast as hares.
There are always more secondary consumers than primary.
There are always more primary consumers than secondary.
5
Proteins are...
made of amino acids
made of monosaccharides
comprised mainly of glycerols
made of nucletides
6
What do you call the maximum population size that an environment can support?
It's metapopulation
Carrying capacity
Density dependence
Instantaneous growth rate
7
Which of the following represents the carrying capacity of this population?
B
The dotted line
A
C
8
Which of the cycles does NOT include decomposition?
nitrogen
water
carbon
phosphorus
9
The nonliving parts of an ecosystem are called
biotic
bioptic
abiotic
populations
10
What is the base of the energy pyramid? Ecology
secondary consumer
primary consumer
producer
Tertiary consumer
11
This elephant population is experiencing......
Exponential population growth
limited food resources
Logistic population growth
Density dependence
12
What is a dependent variable?
a variable that you have to change to make it a fair test
A variable that you keep the same in an experiment
a variable you measure in an experiment
a variable that you change in an experiment
13
What do we call the balancing of chemical equations?
conservation of gravity
conservation of velocity
conservation of mass
conservation of nuclear atoms
14
Ionic bonds ___________ electrons.
disappear
transfer
adopt
share
15
What is another name for heterotroph?
Consumer
Decomposer
Producer
Autotroph
16
What are chemical reactions
the amount of energy the organism uses
allows the cells function properly, and maintain life
process that changes substances into other substances
amount of an element that is at the end was at the beginning
17
What is a food web?
a web that is made by spiders to collect food
a system of interlocking and interdependent food chains.
batman dies at the end of endgame
organisms that depend of the food source
18
When balancing Equations what does --> mean?
Yield
It's just an arrow?
Subscript
Product
19
Which one is a Biotic factor? Ecology
Grass
dirt
water
air
20
The primary function of lipids is
Building the structure of our body
Regulating Body Termperature
Acting as a solvent for nutrients
Long Term Energy Storage
21
Identify the PRODUCERS in the food web:
Phytoplankton and zooplankton
Herbivorous zooplankton
Algae
Phytoplankton
22
Oxygen can form ___ covalent bonds.
8
5
6
2
23
The right side of the chemical equations is called what?
Coefficient
Subscript
Reactants
Products
24
Identify the CONSUMERS in the food web:
Hawk, snake, frog, cricket, and shrew.
Grasshopper, snake, shrew, frog, cricket, shrew, and hawk.
Snake, hawk, grasshopper, shrew, frog, and cattail.
Marsh grass and cattail.
25
What is a density independent factor?
Predators
lack of space
Disease
Pollution
26
Identify the PRODUCERS in the food web:
Marsh grass and Cattail
Marsh Grass
Cattail
Marsh grass and grasshopper
27
How many elements are present in this compound?
3
4
1
8
28
The left side of the chemical equations is called what?
Products
Reactants
Subscript
Coefficient
29
What is wrong with this food chain?
The plant is a omnivore.
The deer is a carnivore.
The lion is a herbivore.
The arrows are backwards.
30
Which country will have the most rapid population growth?
United States
Mexico
None
Sweeden
31
Balance the chemical equation
1, 2, 2
4, 3, 2
3, 9, 6
1, 3, 2
32
What is a population?
Many individuals- in to the same biome
Many individuals-belong to the same population live together
Many individuals-belong to the same community, live together
Many individuals-belong to the same species, live together
33
The available chemical energy in an ecosystem...
increases as it flow from producer to consumer
remains constant as it flows
decreases as it flows from consumer to producer
decreases as it flows from producer to consumer
34
What is Biology?
Study of Plants
Study of trees
Study of the human
Study of Life
35
what is mutualism?
symbiosis where one species benefits and the other is harmed
type of symbiosis where both species benefit
friends of your friends
symbiosis where one species benefits, but the other doesn’t
36
The arrows on a food web...
...show who is the prey.
...shows who is the predator.
...shows the direction the energy is moving to
...shows that the organism wants to travel that way.
37
Decomposers are important in an ecosystem because they...
Stop the flow of energy from one organism to another
Are microscopic and other organisms can't consume them
Break down dead organisms & recycle nutrients into the soil
Produce their own food using light from the sun
38
What is a primary Consumer? Ecology
The organism that eats the Tertiary consumer
The organism that eats the producer
The organism that eats the secondary consumer
The organism that makes the food
39
Covalent Bonds occur between?
1 Metal and 1 Nonmetal
2 Nonmetals
2 Metals
40
Function of Nucleic Acids
Quick energy source
Stores genetic information
Long term energy storage
Transports and sends signals
41
what is an independent variable?
What you keep the same.
what you measure in the experiment.
the one variable that you change.
how we find out answers about the natural world.
42
What are the different variables?
Controlled, dependent, & independent
Change, measure, & same
Change, dependent, & independent
Dependent, independent, & measure
43
Substances formed from chemical reactions are called_____________
protons
products
precipitate
reactants
44
What is glucose?
Lipids
Protein
A source of energy
Carbohydrate
45
What percent of energy is transferred per consumer level? Ecology
90%
60%
40%
10%
46
Identify the HERBIVORES in the food web:
Carnivorous zooplankton
Penguins
Baleen whale
Krill
47
Balance the chemical equation
1, 2, 4
6, 6, 2
3, 5, 1
4, 5, 2
48
what are the four macromolecules
Lipids, protists, carbohydrates, Nucleic acid
Protein, Lipids, Carbohydrates, Amino Acids
Proteins, Lipids, Carbohydrate, Nucleic acid
Hydrogen, Carbon, Nitrogen,
49
Define Covalent Bonds:
Bonds in which molecules transfer valence electrons.
Bonds in which atoms share valence electrons.
Bonds in which atoms transfer valence electrons.
Bonds in which molecules share valence electrons.
50
What is Ecology ?
Species growing together
Surface and hydrosphere of the earth
species that are capable and live in the same place
Study of interactions among organisms in their environment
51
What is a plant in a food chain?
heterotroph
Producer
Decomposer
Consumer
52
Which one is a abiotic factor? Ecology
Bacteria
Humans
Fungi
Air
53
Balance the chemical equation
6, 14, 8, 4
2, 1, 2, 1
3, 7, 4, 2
4, 2, 4, 2
54
How many atoms of Oxygen?
1
4
3
7
55
Controlled variables are....?
variables that stay the same
unimportant
listed in your hypothesis
variables that change
56
Only _______ of atoms are involved in chemical reactions.
protons
inner electrons
neutrons
outer electrons
57
What is the approximate hare population in 1855?
50,000
10,000
30,000
70,000
58
The maximum population size that a particular environment can sustain
Zero population
Carrying capacity
Logistic growth
Exponential growth
59
List the levels of ecology in order?
organism, population, communtiy, ecosystem
autotroph, heterotroph, carnivores, onminvores
producers, herbivores, omnivores, carnivores
organism, population, ecosystem, community
60
What is the scientific method?
A method used to find kinetic and potential energy
A process used to explore observations/answer questions
A method to find energy flow
A method used to discover science

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