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Food Web Test

Total questions: 30

Worksheet time: 26mins

Name
Class
Date
1.

A simple "line" of plants and animals that transfer energy by the process of eating.

a)

Food Chain

b)

Food Web

c)

Ecosystem

d)

Decomposers

2.

An organism in a food chain that is able to make its own food and represents level 1 on the food chain .

a)

Consumer

b)

Producer

c)

Herbivore

d)

Omnivore

3.
An organism in a food web that feeds directly on the producer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Decomposer
d)
Carnivore
4.

An organism in a food web that eats other consumers to obtain energy.

a)

Producer

b)

Secondary

Consumer

c)

Prey

d)

Scavenger

5.

An organism in a food web that eats other consumers to obtain energy and is not eaten by another organism.

a)

Producer

b)

Top Consumer

c)

Prey

d)

Scavenger

6.
The source of where all energy comes from in a food web.
a)
Top Consumers
b)
Producers
c)
The Sun
d)
Ecosystems
7.

An organism in a food chain that breaks down organic matter (left overs) and puts nutrients back in the soil through chemical reactions.

a)

Decomposer

b)

Carnivore

c)

Omnivore

d)

Scavenger

8.
An animal that eats both plants and animals.
a)
Producer
b)
Consumer
c)
Carnivore
d)
Omnivore
9.
An animal that eats only plants.
a)
Carnivore
b)
Herbivore
c)
Omnivore
d)
Producer
10.
How many primary consumers are there in this food web?
a)
1
b)
2
c)
3
d)
4
11.
What percentage of energy is passed on to each tropic level?
a)
10%
b)
50%
c)
90%
d)
100%
12.
How do producers obtain energy?
a)
They conduct photosynthesis.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.
13.
Where do decomposers go in your food chain?
a)
at the beginning
b)
they don't belong in a food chain
c)
at the end
d)
at every level
14.
An organism that gets energy from breaking down dead organisms, non-living material or waste
a)
producer
b)
consumer
c)
decomposer
d)
autotroph
15.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
16.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
17.
If the sun produced 60,000 joules of energy for the producers, how much energy would be transferred to the secondary consumers? (move the decimal)
a)
6,000
b)
600
c)
60
d)
6
18.
After the organism has used enough energy for life processes, what happens to the rest of energy?
a)
Energy Dissapears
b)
Energy is Recycled
c)
Energy is Released as Heat
d)
Energy is Released as Cold Air
19.
What is the difference between the movement of energy and the movement of nutrients (carbon, oxygen, water) in a food web?
a)
Energy flows in one direction, and nutrients recycle.
b)
Nutrients flow in one direction, and energy recycles.
c)
energy transform into nutrients, and Nutrients transforms into energy.
d)
Energy and Nutrients are not related.
20.
In the food chain diagram, what is missing in box #5?
a)
Scavengers
b)
The Sun
c)
Decomposers
d)
Big Foot
21.

How may food chains is this grasshopper apart of?

a)

3

b)

2

c)

5

d)

1

22.

Which organism is both a primary and secondary consumer?

a)

butterfly

b)

bird

c)

mouse

d)

frog

23.

Choose the producers shown on the food web.

a)

frog, grasshopper, eagle

b)

python, rat, dragonfly

c)

corn, lavender, mangoes

d)

wolf, thrash, butterfly

24.

Which organisms are considered to be examples of a primary consumer?

a)

Other Herbivorous Zooplankton

b)

Krill

c)

Birds

d)

Seals

25.

Use the food web to identify all of the TRUE statements.

a)

If phytoplankton died, the krill population would increase drastically.

b)

Fish transfer energy to elephant seals, penguins, leopard seals, and birds.

c)

Krill and Birds eat fish in order to survive.

d)

Smaller toothed whales are the top consumer.

26.

Analyze the food web! How many organisms would be considered primary consumers?

a)

2

b)

5

c)

7

d)

3

27.

Analyze the diagram. How many organisms would be considered top consumers (apex predators)?

a)

3

b)

5

c)

2

d)

1

28.

Can the same animal be a secondary consumer in one food chain and a tertiary consumer in another food chain?

a)

Yes, an example from the food web that would be a secondary consumer in one food chain and a tertiary consumer in another food chain is the insectivorous bird.

b)

Yes, an example from the food web that would be a secondary consumer in one food chain and a tertiary consumer in another food chain is the rabbit.

c)

No, organisms can only be a primary consumer or a tertiary consumer. NOT BOTH!

d)

No, organism can not be both a primary consumer and a tertiary consumer because they are all classified as decomposes.

29.

Which of the following is a food chain in the food web shown?

a)

tree, rabbit, hawk, snake

b)

grass, grasshopper, snake, hawk

c)

grass, caterpillar, robin, hawk

d)

tree, deer, mountain lion, fox

30.

In the food web, would the snake obtain a greater percentage of the sun’s energy if it ate a frog or if it ate a grasshopper?

a)

The snake would obtain a greater percentage of the sun’s energy by eating the frog because the frog is a primary consumer.

b)

The snake would obtain a greater percentage of the sun’s energy by eating the grasshopper because the grasshopper is a primary consumer.

c)

The grasshopper undergoes photosynthesis, therefore the snake would get more nutrients from the grasshopper.

d)

The frog is a top consumer, therefore the snake would get more nutrients from the grasshopper.

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