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Mutualism, Parasitism, Commensalism

Total questions: 15

Worksheet time: 15mins

Name
Class
Date
1.

Which of these describes a mutually beneficial relationship between two organisms?

a)

A dog with worms in its intestine

b)

A turtle and a snail that both eat grass live in a river

c)

A honeybee pollinating a plant and receiving nectar for food

d)

A small fish attached to a shark, eating tiny pieces of the shark's food as it floats

2.

Relationship where one organism benefits and the other is neither harmed nor helped

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Competition

3.

An organism where one organism benefits and another is harmed

a)

Commensalism

b)

Parasitism

c)

Mutualism

d)

Competition

4.

A relationship between two organisms in which one organism benefits and the other is unharmed...

a)

Mutualism 

b)

Competition

c)

Parasitsm 

d)

Commensalism 

5.

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

6.

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

a)

host, hostess

b)

parasite, host

c)

host, parasite

d)

prey, predator

7.

How many types of symbiosis are there?

a)

5

b)

7

c)

3

d)

If you pick this you're silly
1000

8.

Red-billed oxpeckers are birds that feed on parasites found on an impala. The impala gets rid of parasites and the red-billed oxpeckers get a yummy dinner. This is an example of _______.

a)

commensalism

b)

mutualism

c)

neutralism

d)

competition

9.

A relationship between two organisms in which both organisms benefit. 

a)

Mutualism 

b)

Competition

c)

Parasitsm 

d)

Commensalism 

10.

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.

a)

Mutualsim 

b)

Parasitism 

c)

Commensalism 

11.

Which of the following is an example of mutualism?

a)

A bee pollinating a flower while collecting nectar

b)

A tapeworm living in a human intestine

c)

A barnacle attaching to a whale

d)

A lion hunting a zebra

12.

In which type of symbiotic relationship does one organism benefit while the other is harmed?

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Neutralism

13.

What is the main difference between commensalism and mutualism?

a)

In commensalism, both organisms benefit; in mutualism, only one benefits

b)

In commensalism, one organism benefits and the other is harmed; in mutualism, both benefit

c)

In commensalism, one organism benefits and the other is unaffected; in mutualism, both benefit

d)

In commensalism, both organisms are harmed; in mutualism, one benefits

14.

Which of the following scenarios best illustrates commensalism?

a)

A bird eating ticks off a buffalo's back

b)

A remora fish attaching to a shark to catch a ride

c)

A fungus and algae forming a lichen

d)

A mosquito feeding on human blood

15.

How does parasitism differ from mutualism and commensalism?

a)

Parasitism involves two organisms benefiting from each other

b)

Parasitism involves one organism benefiting at the expense of another

c)

Parasitism involves one organism benefiting while the other is unaffected

d)

Parasitism involves both organisms being harmed