BIO120H1 Chapter Notes - Chapter 7: Enteroctopus Dofleini, Guppy, Invertebrate

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5 Feb 2013
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BIO120H1 Full Course Notes
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BIO120H1 Full Course Notes
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The offspring produced by different organisms vary tremendously. Nemo"s father would have changed sex and become a female after nemo loses his mother to a predator. Clownfish spend their entire adult lives within a single sea anemone. In what appears to be a mutually beneficial relationship, the anemone protects the clownfish by stinging their predators. The clownfish, in turn, may help the anemone by eating its parasites or driving away its predators. Two to six clownfish typically inhabit a single anemone: the largest fish in the anemone is a female, the second largest, is the breeding male, the remaining fish are sexually immature nonbreeders. If the female dies, as in nemo"s story, the breeding male undergoes a growth spurt and changes sex to become a female, and the largest nonbreeder increases in size and becomes the new breeding male. The hatchling fish leave the anemone to live in the open ocean, away from the predator-infested reef.