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Energy Flow in Ecosytems

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following has the largest population in the Indian River Lagoon system?

a)

Crab

b)

Egret

c)

Flounder

d)

Phytoplankton

2.

In the Indian River Lagoon System, many organisms compete for food. Which organism in the food web competes with the egrets for food?

a)

Clam worm

b)

Crab

c)

Flounder

d)

Heron

3.

An example of a producer is a

a)

fungus.

b)

animal.

c)

plant.

d)

person.

4.

An example of a consumer is a(n)

a)

oak tree.

b)

dog.

c)

algae.

d)

phytoplankton.

5.

The model of the energy available at each level that ALWAYS gets smaller as you go up is the

a)

energy pyramid.

b)

numbers pyramid.

c)

biomass pyramid.

d)

food web.

6.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
7.
A consumer gets energy by doing what?
a)
Making it themselves.
b)
Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem.
c)
Soaking it up from the ground.
d)
Feeding on other organisms.
8.
Name the tertiary consumer?
a)
snake
b)
fungi
c)
hawk
d)
mouse
9.

All energy on Earth comes from

a)

food.

b)

the sun.

c)

chemicals.

d)

non-living things.

10.

An autotroph can also be called a

a)

animal.

b)

consumer.

c)

heterotroph.

d)

producer.

11.
Where is the most energy available on a Energy Pyramid?
a)
Producer Level
b)
First Level Consumers
c)
Second Level  Consumers
d)
Third Level Consumers
12.
A fox's diet contains beetles, eggs, berries, fish and mice. What kind of consumer is a fox?
a)
carnivore
b)
herbivore
c)
omnivore
d)
decomposer
13.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
14.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
15.

What happens to energy availability moving up the pyramid?

a)

Energy availability decreases

b)

Energy availability increases

c)

Energy availability stays the same