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Ecology

Total questions: 52

Worksheet time: 1hrs 13mins

Name
Class
Date
1.
The relationship between ALL the organisms in a community showing who eats whom is called a ___________________________.
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
d)
Biotic Factors
2.
Where does the energy that travels through an ecosystem originally come from?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
3.
A second-level (secondary) consumer CANNOT be which type of consumer?
a)
Carnivore.
b)
Decomposer.
c)
Omnivore
d)
Herbivore.
4.
An animal that only eats other animals is a _______________.
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
5.
A living thing that makes its own food is called a __________________________.
a)
consumer
b)
producer
c)
carnivore
d)
herbivore
6.
Recently, a family of bobcats moved into an area with a large rabbit population. What changes may occur in the ecosystem?
a)
The rabbit population may increase
b)
The rabbit population may decrease
c)
The rabbit population may increase first, then decrease
d)
The rabbit population will remain the same
7.
A population of mice lives in a barn community. A cat population has just joined the community. What will happen?
a)
Mouse and cat populations both go up?
b)
Mouse and cat populations both go down
c)
Mouse population goes down as cat population goes up
d)
Mouse population goes up as cat population goes down
8.
An animal that eats only plants is a ______________________.
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
9.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
10.
What's the role of consumers in a food chain?
a)
Use sunlight to make food 
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
11.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
12.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
13.

What would happen to the rabbit population if the fox population moved out of the area represented by the food web?

a)

The rabbit population would increase

b)

The rabbit population would decrease

c)

The rabbit population would neither increase nor decrease

14.
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.
15.
A secondary consumer will gain energy from what level consumer?  
a)
Producers
b)
Primary Consumers
c)
Tertiary Consumers
d)
Apex Predators
16.
Virtually all plants are autotrophic.  But there are no autotrophic animals or fungi.  What can you infer about autotrophic organisms?
a)
They can move on their own
b)
They are at the top of the food chain
c)
They can make their own energy
d)
They reproduce slowly
17.

As you move through a food chain, the amount of energy stored....

a)

Increases

b)

Decreases

c)

Stays the same

d)

It depends on the ecosystem

18.

How much energy does trophic level 2 store from trophic level 1? (and so on..)

a)

1%

b)

10%

c)

50%

d)

100%

19.

The reactants of photosynthesis

a)

CO2

b)

CO2, H2O

c)

CO2, H2O, Sunlight

d)

none of the above

20.

The products of cellular respiration

a)

CO2

b)

CO2, H2O

c)

CO2, H2O, glucose

d)

CO2, H2O, ATP

21.

Occurs in plants

a)

photosynthesis only

b)

cellular respiration only

c)

photosynthesis and cell respiration

d)

all of the above

22.

Occurs in animals

a)

photosynthesis only

b)

cellular respiration only

c)

cellular respiration and photosynthesis

d)

all of the above

23.

The reactants of cellular respiration

a)

CO2, H2O, sunlight

b)

O2, glucose

c)

CO2, glucose

d)

H2O, sunlight

24.

The products of photosynthesis

a)

CO2, H2O, sunlight

b)

CO2, H2O, ATP

c)

O2, Glucose

d)

CO2, Glucose

25.

Location for photosynthesis

a)

mitochondria

b)

chloroplasts

c)

cytoplasm

d)

vesicle

26.

Which of the following statements is true

a)

The products of photosynthesis are the reactants of cellular respiration.

b)

The products of photosynthesis are not necessary for respiration to occur.

c)

The reactants of photosynthesis are also the reactants of cellular respiration.

d)

The products of photosynthesis are also the products of cellular respiration.

27.
Cellular respiration occurs in 
a)
chloroplasts 
b)
mitochondria
c)
golgi aparatus 
d)
thylakoid 
28.
A relationship between two organisms in which one organism benefits and the other is unharmed...
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
29.
What is the function of ATP in living things?
a)
provides energy for cells
b)
stores genetic information
c)
provides structure in the nucleus
30.
Which two biomes have the least precipitation?
a)
tropical rain forest and temperate grasslan
b)
savanna and tropical dry forest
c)
tundra and desert
d)
boreal forest and temperate woodland
31.

Which biome has permafrost?

a)

Temperate Forest

b)

Rainforest

c)

Taiga

d)

Tundra

32.

Which biome has deciduous trees (trees that lose their leaves)?

a)

Temperate Forest

b)

Rainforest

c)

Grasslands

d)

Taiga

33.

In which organism would biomagnification be the most concentrated? (Remember the lab: Rabbits eat the grass, the snake eats the rabbit, the hawk eats the snake--the hawk is the apex predator)

a)

grass

b)

rabbit

c)

snake

d)

hawk

34.

Which organism would have the most bioaccumulation?

a)

eucalyptus tree

b)

wombats

c)

kookaburras

d)

koalas

35.

Toxin concentrations _____________ as you go up the food chain.

a)

do not change

b)

increase

c)

decrease

36.
For a pyramid of numbers, the width of the bar shows the__________ of organisms present in each trophic level at a particular time. 
a)
number
b)
biomass
c)
energy
d)
volume
37.
The number of organisms _________ with each successive (higher) trophic level. 
a)
increases
b)
decreases
38.

Uses oxygen

a)

aerobic

b)

anaerobic

c)

both

39.

Makes 36 ATP

a)

Aerobic

b)

Anaerobic

c)

Both

40.

Makes 2 ATP

a)

aerobic

b)

anaerobic

c)

both

41.

Happens without oxygen

a)

aerobic

b)

anaerobic

c)

both

42.

makes lactic acid

a)

aerobic

b)

anaerobic

c)

both

43.

What is the impact of fossil fuel combustion on the carbon cycle?

a)

Fossil fuel combustion disrupts the carbon cycle by releasing stored carbon into the atmosphere.

b)

Fossil fuel combustion reduces greenhouse gas emissions

c)

Fossil fuel combustion increases carbon sequestration in the oceans

d)

Fossil fuel combustion has no impact on the carbon cycle

44.

Which gases are considered greenhouse gases?

a)

Oxygen (O2)

b)

Nitrogen (N2)

c)

Carbon dioxide (CO2),

d)

Hydrogen (H2)

45.

How does the burning of fossil fuels contribute to the increase in greenhouse gases?

a)

Burning fossil fuels reduces the amount of greenhouse gases in the environment.

b)

Burning fossil fuels releases carbon dioxide and other greenhouse gases into the atmosphere.

c)

Burning fossil fuels has no impact on greenhouse gas levels.

d)

Burning fossil fuels absorbs greenhouse gases from the atmosphere.

46.

What role do plants play in the carbon cycle?

a)

Plants release carbon dioxide during photosynthesis

b)

Plants absorb carbon dioxide during photosynthesis and store carbon in their tissues.

c)

Plants absorb oxygen and release carbon dioxide

d)

Plants have no impact on the carbon cycle

47.
What process keeps Earth's temperature suitable for life
a)
Convention currents
b)
Greenhouse Effect
c)
Albedo Effect
d)
Water Cycle
48.
Carbon is stored in
a)
trees and other living things
b)
oceans
c)
underground in soil and fossil fuels
d)
all are correct
49.

Choose the three fossil fuels

a)

natural gas

b)

water

c)

coal

d)

hydrogen

e)

oil

50.
Which of the following is the best conclusion that can be made from this graph?
a)
atmospheric carbon dioxide levels have been decreasing since 1960
b)
Hawaii has a lot of carbon dioxide
c)
humans have been working hard to decrease carbon dioxide levels
d)
atmospheric carbon dioxide levels have increased steadily since 1960
51.

A waxy protective covering on plant surfaces that prevents water loss

a)

Adaptation

b)

Cuticle

c)

Tap Root

d)

Fibrous Root System

52.

According to the diagram, which of the following both have large amounts of precipitation?

a)

desert & tropical rain forest

b)

seasonal forest & tundra

c)

tundra & desert

d)

tropical rain forest & temperate rain forest

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