Lichen is a combination of two organisms: Cyanobacteria, does photosynthesis and produces food for the fungus,and fungus, which provides water and minerals for the cyanobacteria.

Ticks and deer: Ticks feed off the deer’s blood; deer loose blood and can get infections from the bites.

Goats and cows: Live in the same place, eating the same plants.

A relationship where two organisms fight for the same limited resource

Clownfish and sea anemone: Clown fish cleans parasites from the anemone; anemone provides protection for the clownfish.

A relationship where both organisms benefit, a win-win relationship

A relationship where one organism benefits and the other is harmed, a win-lose relationship

What is an example of a predator/prey relationship?

What is an example of a mutualistic relationship?

Name two things that organisms would compete over?

What is an example of a competitive relationship?

Cheetahs and antelope: Cheetahs of the African savanna hunt antelope.

A relationship where one organism hunts and kills the other for food