BENCHMARKS COVERED SC.912.L.17.9 Use a food web to identify and distinguish producers, consumers, and decomposers. Explain the pathway of energy transfer through trophic levels and the reduction of available energy at successive trophic levels. SC.7.L.17.2 Compare and contrast the relationships among organisms such as mutualism, predation, parasitism, competition, and commensalism.

What is symbiosis? What it means: Two organisms that live together Temporarily or for a longer time At least one of the organisms benefits from the relationship Literal definition: the act of living together

What are the different kinds of symbiosis? MutualismParasitism Commensalism both organisms benefit one organism benefits one organism is unaffected one organism is harmed

Parasitism: one benefits, one is harmed Example 1: Acacia plant with ant galls Ants lay eggs on acacia tree Acacia covers the infected area with brown flesh (gall)

Mutualism: both benefit Example 2: Moray Eel with Cleaner Fish Moray Eel gets a clean mouth Cleaner Fish gets a meal

Commensalism: one benefits, one is unaffected Example 3: Cattle with cattle egrets Cattle stir up insects as they eat grass Egrets hang around and eat insects

Commensalism: one benefits, one is unaffected Example 4: Clown fish with anemone Clown fish gets protection Anemone is unaffected

Mutualism: both benefit Example 5: Antelope with Oxbird Antelope gets rid of parasites Oxbird gets a meal

Parasitism: one benefits, one is harmed Example 6: Taenia worm in human eye Worm infects human blood stream Human may go blind

HIPPO SPA: MUTUALISM

BODY INVADERS: PARASITISM

GOOD BUDDIES:SYMBIOSIS CHART

What relationship is this? Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales.