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Worksheets

Relationships in an Ecosystem

Total questions: 16

Worksheet time: 18mins

Name
Class
Date
1.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
2.
Examples of just producer
a)
frog, fly, lillypad
b)
algae, grass, tree
c)
worm, dirt, fish
d)
mouse, seeds, bird
3.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
4.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
5.
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.
6.
Overlapping food chains in an ecosystem make up....
a)
food web
b)
food chain
c)
niche
d)
symbiosis
7.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
8.
Why might an organism have more than one arrow coming from them in a food web?
a)
More than one organism may eat them. 
b)
They may eat more than one other organism. 
c)
This organism gets its energy from multiple sources. 
d)
They have no resources available to them.
9.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
10.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
11.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
12.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
13.

What is an example of a predator–prey relationship?

a)

Bacteria and humans

b)

Fox and rabbit

c)

Tick and deer

d)

Lion and hyena

14.

An organism that is "hunted" and "eaten" as food is called ______________________.

a)

Prey

b)

Predator

c)

Host

d)

Parasite

15.

An organism that makes their own food using sunlight.

a)

Producers

b)

Consumers

c)

Decomposers

d)

Nutrients

16.
An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms is a:
a)
Predator
b)
Autotroph
c)
Producer
d)
Decomposer