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Ecology

Total questions: 27

Worksheet time: 15mins

Name
Class
Date
1.
What is the original source of almost all energy in most ecosystems?
a)
carbohydrates
b)
sunlight
c)
water
d)
carbon
2.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
3.

The amount of energy that usually transfers from one trophic level to the next...

a)

10%

b)

20%

c)

80%

d)

50%

4.
An illustration that uses arrows to show the many possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
5.

Which of the following would be the definition of a decomposers?

a)

Animals that eat insects.

b)

Organisms that feed on rocks, recycling the nutrients back into the ground.

c)

Organisms that eat only pants

d)

Organisms that feed on dead organisms, recycling the nutrients back into the ground.

6.

The nonliving aspects of an ecosystem.

a)

Abiotic factors

b)

Biotic factors

7.
The living portions of the ecosystem.
a)
Biotic factors
b)
Abiotic factors
8.

Water temperature would be an example of ...

a)

A biotic factor

b)

An abiotic factor

9.

Consumer that eats plants

a)

heterotroph

b)

primary consumer

c)

producer

d)

secondary consumer

10.
What are the Abiotic factors in this image? 
a)
water, sunlight, dirt, air
b)
birds and plants
c)
birds, water, dirt
d)
plants, water
11.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
12.
The study of how living things interact with one another and with their environment.
a)
Biology
b)
Lithology
c)
Ecology
d)
Farmacology
13.
What makes Fungi so unique when it comes to trophic levels?  
a)
They are producers so they can be high or low 
b)
They are consumers of only plants
c)
They are consumers of all types of organisms because they decompose 
d)
They are consumers of only the primary trophic level
14.
In this food web, what is the grasshopper?
a)
producer
b)
tertiary consumer
c)
secondary consumer
d)
primary consumer
15.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
16.
Which of these is the ultimate source of energy in the energy pyramid
a)
water
b)
air 
c)
sunlight
d)
soil
17.

A local company dumped sewage into the wetlands. As a result, most fish in the wetlands died. This decrease in the number of fish will probably result in

a)

fewer mice

b)

fewer birds

c)

fewer spiders

d)

fewer insects

18.
Which of the following is NOT an abiotic environmental factor?
a)
air
b)
animals
c)
soil
d)
water
19.

Which order of these shows the food chain in the correct order?

a)

Zooplankton--->Bear--->Salmon

b)

Salmon--->Zooplankton--->Bear

c)

Zooplankton-->Salmon--->Bear

d)

Bear--->Zooplankton--->Salmon

20.
Which of the following organisms are typical decomposers?
a)
grasses and ferns
b)
bacteria and mushrooms
c)
mice and deer
d)
lions and snakes
21.
What percent of energy is transferred from consumer to consumer in a food chain?
a)
25%
b)
10% 
c)
90%
d)
50%
22.
How would the removal of the earth worms affect the other organisms.
a)
The number of bass will increase
b)
The number of crayfish will decrease
c)
The crayfish will get their energy directly from the sun 
d)
The number of bass and ospreys will increase
23.
The sun's energy is most directly available to people through
a)
Path A
b)
Path B
c)
Path C
d)
Path D
24.
Which organism receives the least amount of energy from the producer?
a)
The squirrel
b)
The shrew
c)
The deer
d)
The rabbit
25.
In the food web shown, which is the tertiary consumer?
a)
large lizard
b)
snake
c)
scorpion
d)
desert fox
26.

The monkey would be a

a)

decomposer

b)

producer

c)

primary consumer

d)

secondary consumer

27.

90% of the energy that gets lost as you move up a food pyramid or chain gets lost as

a)

pollution to the environment

b)

heat to the environment

c)

energy for decomposers

d)

gets recycled

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