Animal Relationships:Symbiosis

Commensalism (+, 0)

• An animal relationship in which one organism is helped and the other is not harmed.

• Examples: Bristle worm/hermit crabRemora/shark

Mutualism (+,+)

• An animal relationship in which both organisms are helped.

• Examples: Sea Anemone/ Clown fish, Tick bird/Rhino

Parasitism (+, -)

• An animal relationship in which one organism is helped and the other is harmed but not necessarily killed.

• Examples: Flea/Dog, Mosquito/ Human

Predator/Prey ( +, x)

• An animal relationship in which one organism is helped and the other is killed.

• Examples: Lion/Zebra, Wolf/Deer