Symbiosis Review

Front

What does symbiosis mean?

Back

Living together, close relationship between 2 species.

Front

What is parasitism?

Back

A relationship between 2 organisms in which one organism benefits and the other is harmed.

Front

What is mutualism?

Back

A relationship between two organisms in which both organisms benefit.

Front

What is commensalism?

Back

A relationship between two organisms in which one benefits and the other is neither helped nor harmed.

Front

What is predation?

Back

A relationship where one organism kills and eats another.

Front

Example of mutualism: Fungi and algae form lichens. What do they provide each other?

Back

Fungi provide a protective home and nutrients; algae provide energy through photosynthesis.

Front

Example of parasitism: What do hookworms do to their host?

Back

They attach to the intestinal wall and feed on the host's blood, causing harm.

Front

What is the difference between mutualism and parasitism?

Back

In mutualism, both organisms benefit; in parasitism, one benefits at the expense of the other.

Front

What is an example of commensalism?

Back

Barnacles attaching to a whale; barnacles benefit while the whale is unaffected.

Front

What is competition in ecology?

Back

A relationship where two organisms compete for the same resources.