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Unit 6 Exam Part 1: Energy in Ecosystems

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.
What energy role describes an organism that makes its own food, usually by using energy from the sun?
a)
consumer
b)
producer
c)
carnivore
d)
decomposer
2.
Hetetrotroph is another word (a synonym) for
a)
scavenger
b)
producer
c)
autotroph
d)
consumer
3.

These organisms break down decaying biotic wastes and then return the materials to the ecosystem.

a)

decomposers

b)

scavengers

c)

carnivores

d)

producers

4.

In the food web above, what eats the rabbit?

a)

Fox

b)

Hawk

c)

Vole

d)

Grass

5.

In the energy pyramid, what is the bottom level composed of?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

6.

In the energy pyramid, what comes after the producers?

a)

Producers

b)

Primary Consumers

c)

Secondary Consumers

d)

Tertiary Consumers

7.
Which organism in this food web is an herbivore?
a)
Frog
b)
Grasshopper
c)
Mouse
d)
Snake
8.
Which of the following diagrams would show all of the feeding connections within an ecosystem?
a)
Food web
b)
Food Chain
c)
Energy Web
d)
Energy Pyramid
9.
Which of the following diagrams would show how much energy is transferred between feeding levels in an ecosystem?
a)
Food web
b)
Food Chain
c)
Energy Web
d)
Energy Pyramid
10.

What happens to the solar energy absorbed by plants during photosynthesis?

a)

It is recycled by plants and returned to the atmosphere.

b)

It is converted into oxygen and glucose

c)

It is stored as heat within the plant for cellular functions

d)

It is transformed into chemical energy.

11.
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.
12.
An energy pyramid represents what?
a)
How much sunlight is available for the ecosystem to use. 
b)
How much energy a particular organism needs. 
c)
How much energy is needed to build a pyramid. 
d)
The amount of energy available to the next 'feeder' in a food web.
13.

How much energy is available to be passed on to the next level in a food web?

a)

100%

b)

10%

c)

50%

d)

75%

14.

Which of the following is an abiotic part of an ecosystem?

a)

air

b)

trees

c)

mice

d)

snakes