Macroevolution and History of Life

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Presentation transcript:

Macroevolution and History of Life Unit 1 Part 3 Notes

SPECIATION = REPRODUCTIVE ISOLATION

Allosteric speciation Sympatric speciation

Isolation Doesn’t Always Mean Speciation

PRE = BEFORE POST = AFTER ZYGOTIC = ZYGOTE = FERTILIZED EGG (diploid cell when egg and sperm combine)

(proteins on the surface of gametes do not allow the fusion of sperm and egg)

(zygote doesn’t develop properly, and if the hybrid is “born,” it doesn’t live long enough to reproduce)

History of Life

Endosymbiosis: How Eukaryotes arose from Prokaryotes

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