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Balance in Ecosystems

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

The place where an organism lives is known as

a)

a habitat

b)

a niche

c)

an ecosystem

d)

a food chain

2.

A _________ is a special role that the organism plays in the ecosystem.

a)

habitat

b)

niche

c)

ecosystem

d)

food web

3.

Resources that restrict the growth of populations is know as

a)

habitat

b)

symbiosis

c)

competition

d)

limiting factors

4.

A remora and a ray have a parasitic relationship.

a)

True

b)

False

5.

An example of a mutualistic relationship is

a)

A pollinator and a flowering plant

b)

A remora and a ray

c)

A tick and a mammal

d)

A barnacle and a whale

6.

The fight for limited resources is known as

a)

limiting factors

b)

competition

c)

fighting

d)

survival

7.

The amount of space in an ecosystem can be a limiting factor on the number of organisms living in that ecosystem.

a)

True

b)

False

8.

In commensalism one organism benefits without harming the other.

a)

True

b)

False

9.

An invasive species can be introduced to an ecosystems by human interaction.

a)

True

b)

False

10.

Which of the following is NOT a type of symbiosis?

a)

mutualism

b)

parasitism

c)

commensalism

d)

touristism

11.

Which of the following is not liking to be a limiting factor on the number of carnivores in an ecosystem?

a)

the amount of water

b)

the amount of space

c)

the amount of plants

d)

the amount of animals

12.

Tigers are predators. If a consumer is REMOVED from an ecosystem, then...

a)

the population of primary ad secondary consumers will increase.

b)

the population of primary and secondary consumers will decrease.

c)

all secondary consumers will be unaffected.

d)

the population of producers will increase.

13.

Which of the following is an example of an invasive species?

a)

gypsy moth

b)

house cats

c)

horses

d)

grass