Interactions in an Ecosystem

A relationship between two organisms in which both organisms benefit.

• commensalism
• mutualism
• parasitism

A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?

• mutualism
• commensalism
• parasitism
• predation

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

• Mutualism

• Commensalism

• Parasitism

Two organisms fighting over the same resource.

• commensalism
• niche
• competition

Tags

NGSS.MS-LS2-1

Ostriches and gazelles eat together. They both watch for predators and danger. Since they see things differently, they each can identify threats the other animal may not see. Both species are benefited.

• mutualism

• commensalism

• parasitism

Tags

NGSS.MS-LS2-2

Hermit crabs live in shells that snails don't use anymore. The hermit crab gets a nice free home. This neither harms nor helps the snails.

• mutualism

• commensalism

• parasitism

Two male Giraffes are fighting over the last green leaf of a tree that is dying.

• competition

• predator/prey

• mutualism

• commensalism

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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

• commensalism
• competition
• niche

A flea feeds on a mouses' blood to the harming of the mouse.  What type of symbiotic relationship is this?

• commensalism
• mutualism
• parasitism

Tags

NGSS.MS-LS2-2

In this picture, the lion is the __________________

• predator
• prey