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Homeostasis Mid Unit Review

Total questions: 136

Worksheet time: 4hrs 40mins

Name
Class
Date
1.

Biotic factors are

a)

Living

b)

nonliving

2.

Do the owl and the bird compete for resources?

a)

Yes, for the grasshopper

b)

Yes for the mice

c)

No they do not compete

3.

The factors that limit the size of a population are:

a)

Ecos factor

b)

carrying capacity

c)

limiting factor

d)

abiotic number

4.

An abiotic factor that limits a population size would be?

a)

Food

b)

predators

c)

space

d)

disease

5.

A biotic factor that limits the size of a population would be:

a)

food

b)

space

c)

water

6.

What word describes a trait that helps an organism survive in its environment?

a)

natural selection

b)

mutation

c)

camouflage

d)

adaptation

7.

Kelp

a)

Producer

b)

Consumer

8.

Sea Otter

a)

Producer

b)

Consumer

9.

Sea Urchin

a)

Producer

b)

Consumer

10.

The largest number of individuals that an environment can support long term is...

a)

carrying capacity

b)

emigration

c)

immigration

d)

population density

11.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population starts to die off

c)

The entire species will go extinct

d)

The carrying capacity just increases

12.

This may cause a population to increase

a)

increase of food supply

b)

removal of predators

c)

removal of disease

d)

all of these

13.

What is the carrying capacity of the graph?

a)

1000

b)

8000

c)

800

d)

600

14.
Which of the following would INCREASE the carrying capacity of an ecosystem?
a)
increase in predators
b)
disease
c)
increase in available food
d)
drought
15.
This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.
a)
vacuole
b)
nucleus
c)
cell membrane
d)
cell wall
16.
The tendency of an organism to maintain a balanced state in order to stay healthy.
a)
Stimuli
b)
Response
c)
Tropism
d)
Homestasis
17.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
18.
An organism that obtains energy by eating other organisms.
a)
Consumer
b)
Producer
c)
Decomposer
d)
Detriov
19.

Animals that only eat producers (also known as herbivores)

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

20.

What is this called?

a)

Food Web

b)

Food Chain

c)

Trophic Level

21.

First trophic level of a ecological pyramid includes

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

22.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
23.
The efficiency of energy transfer from a lower trophic level to the next highest level is roughly
a)
1%
b)
10%
c)
100%
d)
1000%
24.
An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.
a)
producer
b)
consumer
c)
decomposer
d)
autotroph
25.
Eat primary consumers (can be carnivores and omnivores)
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Quaternary Consumers 
d)
Top Predators 
26.
An organism that uses an outside source of energy like the sun to create energy-rich food molecules.
a)
Consumer
b)
Producer
c)
Decomposer
d)
Parasite 
27.
The process of plants using energy from the sun to create the first trophic level is called?
a)
Photosynthesis
b)
Chemosynthesis
c)
Cellular Respiratation
d)
Primary Producers
28.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
29.
A pyramid shape is used to show the amount of available energy at each trophic level because... 
a)
energy decreases as you go up the food chain, just like the pyramid shape gets smaller as you go up. 
b)
energy increases up the food chain just like the pyramid shape gets smaller as you go up. 
c)
energy amounts are the same at each trophic level
30.
Why are producers found at the base of the pyramid?
a)
They create all of the energy and therefore have the most energy of all of the trophic levels
b)
There are more plants than animals. 
c)
They begin the flow of energy in an ecosystem.
d)
All of these answers are correct. 
31.

Which of the following are products in the process of cellular respiration?

a)

carbon dioxide and oxygen

b)

carbon dioxide and water

c)

glucose and oxygen

d)

glucose and water

32.

Cellular respiration is carried out by which of the following?

a)

plants only

b)

plants and animals

c)

plants, algae, and cyanobacteria

d)

all living organisms

33.

Which of the following are reactants in the process of cellular respiration?

a)

carbon dioxide and water

b)

glucose and oxygen

c)

carbon dioxide and oxygen

d)

glucose and water

34.

Which of these word formulas for cellular respiration is correct?

a)

Glucose + Water --> Carbon dioxide + Oxygen + Energy

b)

Carbon dioxide + Water + Energy --> Glucose + Oxygen

c)

Energy + Water + Oxygen --> Glucose + Carbon dioxide

d)

Glucose + Oxygen --> Carbon dioxide + Water + Energy

35.

Which of the following represents the correct cycling of gases?

a)

b)

c)

d)

36.

Which of the following represents the correct cycling of gases?

a)

b)

c)

d)

37.

What are the TWO inputs of photosynthesis?

a)

ATP

b)

carbon dioxide

c)

glucose

d)

oxygen gas

e)

water

38.

What are the TWO outputs of photosynthesis?

a)

ATP

b)

carbon dioxide

c)

glucose

d)

oxygen gas

e)

water

39.

What are the TWO inputs of cellular respiration?

a)

ATP

b)

carbon dioxide

c)

glucose

d)

oxygen gas

e)

water

40.

What are the THREE outputs of cellular respiration?

a)

ATP

b)

carbon dioxide

c)

glucose

d)

oxygen gas

e)

water

41.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
42.
Where is there a low concentration of dye?
a)
at the bottom of cup
b)
in the color
c)
at the top of cup 
d)
no concenteraion gradient
43.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
44.
Where is there a high concentration of water?
a)
in the flower
b)
cannot be determined by picture.
c)
in the vase
d)
in the leaves
45.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
46.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
47.

Carbon dioxide (CO2) is also produced in the ocean by ______________________________.

a)

photosynthesis of marine plants

b)

cellular respiration of marine organisms

c)

sea water freezing

d)

increased alkalinity

48.

Ocean acidification occurs when too much _______________________________ enters the ocean from the atmosphere.

a)

calcium carbonate

b)

carbon dioxide

c)

sulfur dioxide

d)

nitrogen gas

49.

______________________ is needed by corals, mollusks, sponges, and crustaceans to make their skeletons, shells, spicules, and structures.

a)

calcium carbonate

b)

sodium chloride

c)

carbon dioxide

d)

nitrogen gas

50.
As the ocean becomes more acidic, the pH of the water
a)
increases
b)
decreases
51.

According to your data, the lower the pH of the solution the more it ___________ from the sea shell.

a)

Dissolved the calcium carbonate

b)

Added calcium carbonate

c)

Did nothing to the shell

52.

This image demonstrates that

a)

There is a direct correlation with the atmospheric CO2 and the CO2 in seawater

b)

That pH of the ocean increases as the atmospheric CO2 increases

c)

That there is no correlation between pH of the ocean and atmospheric CO2

53.

Burning carbon-based fossil fuels releases what gas into the atmosphere?

a)

acid gas

b)

chlorine gas

c)

oxygenated hydrogen

d)

carbon dioxide

54.

All carbon dioxide gas found in the ocean is there because humans are causing pollution from burning fossil fuels.

a)

True

b)

False

55.

Ocean acidification raises the pH of the ocean .

a)

True

b)

False

56.
The process of burning fuel to drive a car or operate a factory is called 
a)
photosynthesis
b)
combustion
c)
respiration
57.

What does the blue line show?

a)

CO2 in the water

b)

Air temperature

c)

Carbon emissions

d)

pH of the water

58.

As the pH decreases, what happens to the ocean?

a)

It becomes more acidic.

b)

It becomes more basic.

59.

When humans EXHALE, we release ____________________.

a)

Oxygen

b)

Nitrogen

c)

Water

d)

Carbon Dioxide

60.

How does carbon get from the atmosphere into organisms?

a)

Decomposition

b)

Respirataion

c)

Photosynthesis

d)

Deposition

61.

How does carbon get from underground deposits (fossil fuels) into the atmosphere?

a)

Decomposition

b)

Deposition

c)

Photosynthesis

d)

Combustion

62.

If the plant population decreased, the amount of carbon dioxide in the atmosphere would _________.

a)

Stay the same

b)

Increase

c)

Decrease

63.
Bio = 
a)
Earth
b)
Sphere
c)
Life
d)
Water
64.
This system is made up of all the water on or near the earth's surface
a)
Hydrosphere 
b)
Biosphere 
c)
Atmosphere 
d)
Geosphere 
65.
Animals, forests, grasslands, and trees all belong to which sphere?
a)
Atmosphere
b)
Biosphere
c)
Lithosphere
d)
Hydrosphere
66.
This sphere is composed of all the living things 
a)
Hydrosphere 
b)
Biosphere 
c)
Atmosphere 
d)
Geosphere 
67.

One of the most common examples of homeostasis is body temperature. When your body temperature rises above normal, how does your body respond?

a)

shivers

b)

sweats

c)

coughs

68.
During diffusion
a)
substances (things) moves from high to low concentration
b)
water moves when energy is used
c)
large or oddly shaped molecules move across a cell membrane
d)
water moves from high to low concentration
69.

Plants absorb the gas _______________ from the atmosphere through the process of _____________________.

a)

carbon dioxide;

photosynthesis

b)

oxygen;

diffusion

c)

nitrogen;

cellular respiration

d)

hydrogen;

evaporation

70.

Plants release the gas _________________ into the atmosphere through the process of _____________________.

a)

hydrogen;

transportation

b)

nitrogen;

evaporation

c)

carbon dioxide;

cellular respiration

d)

oxygen;

photosynthesis

71.

What are the inputs required for cellular respiration to occur? (Select all correct responses.)

a)

Oxygen

b)

Carbon Dioxide

c)

Water

d)

Glucose (Sugar)

e)

Sunlight

72.

Which organisms use cellular respiration to create energy?

a)

Producers

b)

Consumers

c)

Both Producers and Consumers

73.

Rabbits eat only carbohydrates (carbon, hydrogen, and oxygen), but need nitrogen to build muscle. Where do they get nitrogen?

a)

They must eat protein to get nitrogen.

b)

The breathe it in.

c)

It has been absorbed by the plants that they eat.

d)

They get it through the soil.

74.

Which nutrient cycle requires bacteria in order for the nutrient to be available to plants and animals?

a)

Carbon Cycle

b)

Nitrogen Cycle

c)

Water Cycle

75.

Which word matches this image?

a)

Diffusion

b)

Cellular Respiration

c)

Digestion

d)

Cycle

76.
Which best describes an adaptation?
a)
A trait that helps an organism to survive in its environment.
b)
A trait that the organism can change when he wants.
c)
A trait that does not help the organism to survive in its environment.
d)
The place where an organism lives.
77.
Which of the following variations would help members of a rabbit population survive if the climate turned very hot?
a)
Thinner fur
b)
Ability to run faster
c)
Ability to jump higher
d)
Ability to eat more
78.

Sea Lion

a)

Producer

b)

Consumer

79.
The resources that limit the growth of a population
a)
carrying capacity
b)
limiting factors
c)
predation
d)
prey
80.
_____ eats _______
a)
predator; prey
b)
prey; predator
81.
the total mass of organisms in a given area or volume
a)
Biomass
b)
Biodiversity
c)
Density
d)
Population
82.
the variety of life in the world or in a particular habitat or ecosystem
a)
Biomass
b)
Biodiversity
c)
Population
d)
Ecosystem
83.
a species on which other species in an ecosystem largely depend, such that if it were removed the ecosystem would change drastically
a)
Keystone species
b)
Biomass
c)
Essential Species
d)
Predator
84.

What do these graphs suggests in regards to which sized urchins are preferred by otters?

a)

Otters prefer to eat small sea urchins.

b)

Otters prefer to eat mid-sized to large urchins.

c)

Otters do not have a preference for urchin size.

d)

Otters refuse to eat medium sized urchins.

85.

Sea otter consumption of different species of prey in the wild.


Based on this graph which species of prey do the sea otters prefer?

a)

Purple urchins

b)

Red urchins

c)

Kelp

d)

Crabs

86.

Why are kelp and otter populations decreasing?

a)

Otters decrease due to not enough food & kelp decreases because of lack of sunlight

b)

Orcas are hunting too many otters which increases urchin populations to eat too much kelp

c)

Otters increase and eat too many urchins & kelp population decreases due to urchins eating

d)

Orcas don't eat otters & urchins are eating too much kelp

87.
The physical appearance of a trait is known as the-
a)
genotype
b)
phenotype
c)
characteristics
d)
intelligence
88.
What you see, or the physical appearance.
a)
Genotype
b)
Phenotype
c)
Homozygous
d)
Heterozygous
89.
How much of your DNA do you inherit from your mom?
a)
10%
b)
25%
c)
50%
d)
it varies
90.

Steve used a ruler to measure the length of a cube. He found the cube to be 3 cm. This is an example of a observation.

a)

Quantitative

b)

Qualitative

c)

Neither qualitative nor quantitative

91.

What kind of observation is in the picture?

a)

Quantitative

b)

Qualitative

c)

Neither quantitative nor qualitative

92.

What kind of observation is this: A large ball rolling

a)

Quantitative

b)

Qualitative

c)

Neither quantitative nor qualitative

93.

T/F: A quantitative observation always includes a number and a unit.

a)

True

b)

False

94.

A observation requires your senses (sight, smell, taste, hearing, and feel)

a)

Quantitative

b)

Qualitative

c)

Neither quantitative nor qualitative

95.

"Leaves turn red in the fall" is an example of a observation

a)

Quantitative

b)

Qualitative

c)

Neither quantitative nor qualitative

96.

Select the best answer based on the image.

a)

Gene Flow

b)

Genetic Drift

97.
Man made carbon dioxide comes from the burning of fossil fuels.  An example of a fossil fuel is
a)
wood
b)
oil
c)
shale
98.
The process of burning fuel to drive a car or operate a factory is called 
a)
photosynthesis
b)
combustion
c)
respiration
99.
Very slight increases in the acidity of seawater __________  marine organisms that make shells.
a)
doesn't bother
b)
has no effect on 
c)
is unhealthy and stresses
100.

This is a scale used to measure the acidity of a liquid.

a)

Logarithmic Scale

b)

Acid Scale

c)

pH Scale

d)

Basic Scale

101.

Which would be the strongest acid?

a)

Lemon (pH 2.0)

b)

Orange (pH 3.3)

c)

Soda (2.5)

d)

Coffee (4.5)

102.

How are humans adding CO2 to the air?

a)

Building houses

b)

Using fossil fuels

c)

Causing chemical spills

d)

Growing trees

103.

This image demonstrates that

a)

There is a direct correlation with the atmospheric CO2 and the CO2 in seawater

b)

That pH of the ocean increases as the atmospheric CO2 increases

c)

That there is no correlation between pH of the ocean and atmospheric CO2

104.
As the ocean becomes more acidic, the pH of the water
a)
increases
b)
decreases
105.

Ocean acidification is related to...

a)

climate change

b)

human impact

c)

fossil fuels

d)

all of the above

106.

What happens to water when it is dissolved with carbon dioxide?

a)

it becomes more acidic

b)

it becomes more basic

c)

it becomes healthier to drink

d)

it turns into coal

107.

The process in which nitrogen circulates and is recycled is called

a)

The nitrogen cycle

b)

The carbon cycle

c)

The water cycle

d)

The phosphorus cycle

108.

Organisms that need nitrogen to survive.

a)

only plants

b)

only animals

c)

only bacteria

d)

all living things

109.

How do animals get the nitrogen they need?

a)

From the air they breathe

b)

From the water they drink

c)

From the food they eat

d)

From the sun

110.

Bacteria fix nitrogen from the atmosphere into a form plants can use.

a)

True

b)

False

111.

What is the process where bacteria turns Nitrogen gas from the atmospheres into usable compounds?

a)

nitrogen composition

b)

nitrogen fixation

c)

ammonia

d)

denitrification

112.
Organisms that break down dead plants & animals and release nitrogen back into atmosphere...
a)
bacteria
b)
plants
c)
animals
d)
producers
113.
Plants and animals cannot use nitrogen directly from the air.
a)
True
b)
False
114.
Nitrification happens in the ______
a)
Air 
b)
Soil 
c)
Ground Water 
d)
Plants 
115.

What happens when too much Nitrogen finds its way to the ocean?

a)

Algae Bloom

b)

Acid Precipitation

c)

Nitrogen Fixation

d)

Decomposition

116.

How does most of the water needed by the plant get into its leaves?

a)

It enters through the stomata

b)

The roots absorb it and then it travels up the stem

c)

It's made during a chemical reaction in the leaf

d)

The flowers capture water and deliver it to the leaves

117.
Why do plants conduct photosynthesis?
a)
To make light
b)
To make mitochondria
c)
To make glucose
d)
To release carbon dioxide
118.

_________ provides most of the oxygen on earth. 

a)

Decomposition

b)

Cellular Respiration

c)

Photosynthesis

d)

Nitrogen Fization

119.

Nitorgen can not be used when it is in the atmosphere, what is the name of process that changes nitrogen so it can be used?

a)

proliferation

b)

denitrification

c)

nitrogen fixation

d)

bacteria

120.

According to the graph, what is causing the deer population to decrease

a)

They got sick

b)

The wolf population is decreasing

c)

The wolf population increased

d)

They ran out of food

121.

Examine the graph below of two animal populations. Which animal must be the prey species?

a)

A

b)

B

122.

In an energy pyramid, how much of the energy in each level gets passed to the next level above it?

a)

80%

b)

90%

c)

10%

d)

20%

123.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
124.

If producers in this food web have 2,000kCal of energy, how much of that would end up going to the herring (secondary consumers)?

a)

200 kCal

b)

20 kCal

c)

2 kCal

d)

0.2KCal

125.
A feeding relationship where one organism hunts and one is hunted.
a)
Commensalism
b)
Decomposistion
c)
Mutualism
d)
Predator-Prey
126.

Which of the following is not a biotic factor in an ecosystem?

a)

wind

b)

algae

c)

dead skunk

d)

oak tree

127.

What is a tropic cascade?

a)

an ecological process triggered by the removal or addition of a top predator that causes changes throughout the food chain.

b)

an ecological process triggered by the removal or addition of a top predator that causes no changes throughout the food chain.

c)

an ecological process triggered by the removal or addition of a vegetation that causes no changes throughout the food chain.

d)

an ecological process triggered by the removal or addition of a primary consumer that causes changes throughout the food chain.

128.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
129.
Where is there a low concentration of perfume?
a)
in the bottle
b)
on the hand
c)
in the room
d)
in the top
130.
Which diagram best shows the end result of diffusion?
a)
F
b)
G
c)
H
d)
J
131.

What is another word that can be used to describe "homeostasis"?

a)

STABLE

b)

EQUAL

c)

COMPLETE

d)

CORRECT

132.

Which of these is true of the mammalian dive response?

a)

The longer a mammal dives, the more oxygen it has

b)

The longer a mammal dives, the slower its heart beats

c)

The longer a mammal dives, the faster its heart beats

d)

The longer a mammal dives, the harder the heart beats

133.

Choose the best answer: The point of us breathing oxygen is

a)

to stay alive

b)

to fill our lungs

c)

to make ATP(energy)

d)

to feel refreshed

134.

Cellular Respiration's goal is to

a)

make water

b)

make ATP(energy)

c)

make glucose

d)

make oxygen

135.

Where do Emperor Penguins store most of their oxygen?

a)

lungs

b)

digestive system

c)

blood

d)

muscles

136.

No breathing is:

a)

eupnea

b)

apnea

c)

tachypnea

d)

hyperventilation

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