BIOB50 Chapter 7 Review

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5 Feb 2012
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Grass plants produce seeds that are buried in soil until conditions are right for germination. Sea star produces thousands of microscopic eggs that develop adrift in the ocean. Rhinocero produces a calf that develops in her womb for 16-18 months. Require more than a year of care before it becomes fully independent. Clownfish spend entire adult lives in a single sea anemone. Clownfish help anemone by eating/ driving away its predators. 2 to 6 clownfish live in a single anemone. They are usually not related to one another, not family members. Interact based on a strict pecking order based on size. If female dies, breeding male undergoes growth spurt & changes sex to become a female. Largest non-breeder increases in size & becomes new breeding male. Breeding male mates with female & cares for fertilized eggs until they hatch. Enter an anemone if there is room, otherwise get rejected by resident fish. Life cycle with expulsion, hierarchy & sex change.

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