Interactions Within Ecosystems

Close, long term relationships between two species that usually involves an exchange of food or energy

• symbiosis

• mutualism

• commensalism

• competition

A relationship where one species benefits and the other is not affected

• competition

• mutualism

• commensalism

• parasitism

A relationship where one species benefits and ther other is harmed

• parasitism

• mutualism

• cooperative

• commensalism

A relationship where two different species both benefit from the association

• mutualism

• parasitism

• competition

• commensalism

Members of the same species work together to benefit the entire group

• mutualism

• cooperative

• predator-prey

• commensalism

An eagle eating a snake to receive energy is an example of what kind of interaction?

• predator-prey

• parasitic

• competitive

• symbiotic

Tags

NGSS.MS-LS2-2

Oak trees and elm trees both are planted in the same forest. What can you infer about their relationship?

• They are competitive

• They are mutualistic

• They are cooperative

• They are symbiotic

Tags

NGSS.MS-LS2-2

What usually happens when one organism in a mutualistic relationship dies?

• The other organism is not as successful

• The other organism is not affected

• The other organism benefits

• It turns into a parasitic relationship

Tags

NGSS.MS-LS2-2

What happens when the organism benefiting in a commensalistic relationship dies?

• The other organism is not affected

• The other organism is harmed

• The other organism is more successful

• The relationship turns into a parasitic relationship

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which is an example of a cooperative relationship?

• Fungi and other decomposers help return nutrients to the soil

• Different species of birds need the same seeds for energy

• Female bats raise their young together

• Remora attach to sharks to help move around the ocean

Tags

NGSS.MS-LS2-2