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Ecosystem & Food Web Pre-assessment

Total questions: 23

Worksheet time: 30mins

Name
Class
Date
1.
What is a predator?
a)
Neither
b)
An organism that is consumed
c)
An organism that does the consuming
2.
What is prey?
a)
An organism that is consumed
b)
An organism that consumes
c)
neither
3.
Which of these populations is most likely to decrease if the number of grasshoppers decreases?
a)
plants
b)
frog
c)
praying mantis
d)
owl
4.

______________ occurs when one organism captures and feeds on another organism.

a)

Predation

b)

Symbiosis

c)

Competition

d)

Dependent

5.

What does this image show?

a)

Food web

b)

Food chain

c)

Food pyramid

6.

Which of the following is a biotic factor?

a)

a bird flying

b)

a stream flowing

c)

an airplane taking off

d)

a thunderstorm

7.

What is an ecosystem?

a)

A place.

b)

a biological community of interacting organisms and their physical environment.

c)

A biological community of abiotic factors.

d)

Where an animal lives.

8.

What is an abiotic factor?

a)

A living part of an ecosystem.

b)

A Non-Living part of an ecosystem.

c)

Water

d)

A part of an animal.

9.

What is a Biotic Factor?

a)

A living thing in an ecosystem.

b)

The water in an ecosystem.

c)

All the animals in an ecosystem.

d)

The plants.

10.

Choose all the abiotic factors.

a)

Water

b)

Birds

c)

Rocks

d)

Sunflower

11.

A cactus is a biotic factor.

a)

True

b)

False

12.

What is a producer?

a)

Organisms that produce food for themselves and other organisms.

b)

Someone who makes a movie.

c)

Something that makes toys.

13.

Which is an example of a producer.

a)

The grass on the ground.

b)

A machine

c)

A female.

d)

Tyler Perry.

14.
A habitat is a specific place that an animal lives.
a)
True
b)
False
15.
A place where plants and animals live and grow is called a ____________. It provides, food, water, shelter, and air.
a)
shelter
b)
tree
c)
habitat
d)
organism
16.
A group of organisms of the same species living in the same area are called a/an ________.
a)
community
b)
habitat
c)
population
d)
ecosystem
17.
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
18.
A group of different species that live together and interact in an environment are called a/an ________.
a)
community
b)
habitat
c)
population
d)
ecosystem
19.
What is the definition of Biotic factors?
a)
Dead things
b)
plants
c)
Living things or organisms
d)
soil
20.
An ecosystem is made up of _______ and ________ things.
a)
Living and nonliving
b)
Alive and dead
c)
Plants and animals
d)
Land and water
21.
What does the word organism mean?
a)
Living thing
b)
Nonliving thing
c)
Organs in your body
d)
Organ player
22.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
23.
How do producers obtain energy?
a)
They obtain energy from the sun.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.