Unit 6: Essential Question

How do the organisms in an ecosystem interact with each other?

 

Predation- occurs when an organism catches another and feeds on it for energy. For example, a lion catching deer to eat.

Mutualism- occurs when both species in the interaction benefits- such as flowers depending on bees to pollinate it and the bees using the flowers' nectar.

Commensalism- occurs when one member of the interaction benefits while the other is unaffected or unharmed (barnacles catching a "ride" with whales for protection and food)

Parasitism- occurs when an organism lives inside or on another organism and harms the host organism. (mosquitoes biting humans for their blood)

Citation: Prentice Hall Biology Book- Chapter Three 4-2