9.4 - Parasitism and Mutualism

Question 1

What is a symbiotic relationship?

Answer 1

Some species live together in a symbiotic relationship.

Question 2

What are the two types of symbiotic relationships?

Answer 2

The two types are parasitism and mutualistic relationship.

Question 3

What is parasitism?

Answer 3

Parasitism occurs when a smaller species lives directly within or on a larger species and benefits at the expense of the other species.

Question 4

What is a mutualistic relationship?

Answer 4

A mutualistic relationship occurs when one species provides some benefit or resource to the other species.

Question 5

What is an example of a parasite?

Answer 5

The tapeworm is a parasite that lives inside the gut of humans and steals nutrients from the host.

Question 6

What is commensalism?

Answer 6

Commensalism is when there is no damage caused to either species, and there is often a mutual benefit.

Question 7

What is an example of commensalism?

Answer 7

Algae and fungi form lichens, where algae provides sugars for fungi and fungi allows algae to live in extreme conditions.