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Ecology 2021

Total questions: 24

Worksheet time: 3hrs 37mins

Name
Class
Date
1.

A bee receives nectar from a flower and carries the pollen to other flowers:

a)

predation

b)

parasitism

c)

mutualism

d)

commensalism

2.

Mistletoe grows and spreads on trees, taking their nutrients:

a)

predation

b)

parasitism

c)

mutualism

d)

commensalism

3.

What would be a good example of a primary consumer?

a)

carnivore

b)

detrivore

c)

decomposer

d)

herbivore

4.

Which organisms would be at the top or last trophic level?

a)

plant

b)

herbivore

c)

omnivore

d)

carnivore

5.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

6.

Barnacles do not affect whales as they grow, but receive the benefit of a food source. This is

a)

parasitism

b)

mutualism

c)

commensalism

d)

neutralism

7.

Mice might grow in population and destroy the community by eating all of the berry bushes if

a)

wolves and snakes were removed from the food web

b)

another predator migrated in to the community

c)

the snake population grew

d)

none of these

8.

What percentage of energy is passed on to the next trophic level?

a)

5%

b)

10%

c)

50%

d)

90%

9.
True or False. In this energy pyramid, the consumers on each level only get about 10 percent of energy that the trophic level before it has stored.
a)
True
b)
False
10.
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. 
11.
What is the ultimate ORIGINAL source of energy for living things
a)
Sugar
b)
Sun
c)
Moon
d)
Carbon Dioxide
12.
A living or once-living organisms in an ecosystem is a
a)
population
b)
biotic factor
c)
abiotic factor
d)
community
13.
Which of the following is not an abiotic factor?
a)
sun
b)
temperature
c)
soil
d)
grass
14.
Which of the following is not a biotic factor?
a)
mushroom
b)
air
c)
elephant
d)
coyote
15.
Is a fern an abiotic or biotic factor? 
a)
abiotic
b)
biotic
16.
Is a weather an abiotic or biotic factor? 
a)
abiotic
b)
biotic
17.

In the diagram, which organism provides nutrients for the

largest number of other organisms?

a)

Seal

b)

Herring

c)

Snapper

d)

Bluefish

18.

What is the driving source of energy for the food web to

the right?

a)

Sun

b)

Orca

c)

Seal

d)

Larvae

19.

Which organisms compete for food in the food web to the

right?

a)

Orca and Herring

b)

Seal and Copepod

c)

Killifish and Snapper

d)

Mackerel and Bluefish

20.

What are plants called in a food chain?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Scavengers

21.

What are the organisms that break down dead stuff?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Organisms

22.

Which of these organisms would receive energy from the snake?

a)

Plant

b)

Rabbit

c)

Mouse

d)

Hawk

23.

Which type of consumer could be a first or second consumer?

a)

Herbivore

b)

Omnivore

c)

Carnivore

d)

Producer

24.

a system of food chains that shows the transfer of energy is termed

a)

food web

b)

food chain

c)

prey

d)

predator