Target 8.  Symbiosis  Parasitism  Parasite  Host  Commensalism  Mutualism (Just in case you didn’t write them down, they are on pages R71, R79,

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Presentation transcript:

Target 8

 Symbiosis  Parasitism  Parasite  Host  Commensalism  Mutualism (Just in case you didn’t write them down, they are on pages R71, R79, R80, and R85. Host is not in the textbook. I can also turn back slides.)

An interaction between individuals from two species that live closely together.

Parasitism Commensalism Mutualism

 A relationship between two species in which one species benefits while the species it depends on, its host, is harmed.

 Parasites are often microorganisms.  Ex. Tapeworms feed off of nutrients from its host, while the host is deprived of nutrients and gets sick.

Isn’t it GROSS? Tapeworm

 A relationship between two species in which one species benefits while the other is not affected.

 Commensalism is common in oceans.  Ex. Fish swim under jellyfish for protection. Nothing happens to the jellyfish.

Aren’t they COLORFUL? Fish Fish

 An interaction between two species that benefits both.

 Mutualism can be necessary for survival.  Ex. Protozoans (a type of microorganism) break down wood that the termites can’t digest and get a safe place to live.

That tree has a serious INFESTATION problem. Termite damage