BIO120H1 Chapter Notes - Chapter 4: Zoology, Molecular Clock, Marsupial

• School: UTSG
• Department: Biology
• Course: BIO120H1
• Professor: Frederickson M. Wright S.

Document Summary

Bio120: why evolution is true, jerry a. coyne (ch. 4 the. In association with reading quiz 3 and lecture 3. The roots of biogeography lie deep in religion where natural theologians tried to show how the distribution of organisms could be reconciled with the account of noah"s ark in the bible. In mid-1800"s, louis agasiz, a zoologist, asserted that not only were species immutable and static, but so where their distributions, with each remaining at or near their site of creation" several developments made this idea untenable. Fossil seashells high in andes proved that mountains present today were once underwater. Dispersal of animals can be explained by two recently discovered developments on evolutionary theory: continental drift, molecular taxonomy. Evolutionary theory predicts, and data supports the idea that as species diverge from their common ancestors, their dna sequences change in roughly a straight-line fashion with time.