Front

What is parasitism?

Back

A relationship between two organisms in which one is benefited and the other is harmed.

Front

What is mutualism?

Back

A relationship between two organisms where both species benefit from the interaction.

Tags

NGSS.MS-LS2-2

Front

What is commensalism?

Back

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

Tags

NGSS.MS-LS2-2

Front

Define symbiosis.

Back

The close relationship between two different species in an ecosystem.

Front

Give an example of parasitism.

Back

Mistletoe takes water and nutrients from an oak tree, benefiting the mistletoe but harming the tree.

Front

Give an example of mutualism.

Back

Ostriches and gazelles eat together and watch for predators, benefiting both species.

Tags

NGSS.MS-LS2-2

Front

Give an example of commensalism.

Back

Egrets eat insects that fly up when a bison walks through the grass; the bison is neither helped nor harmed.

Tags

NGSS.MS-LS2-2

Front

What is the role of a parasite in a parasitic relationship?

Back

The parasite benefits at the expense of the host.

Front

What is the role of organisms in a mutualistic relationship?

Back

Both organisms benefit from the interaction.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their environment.