This preview shows page 1. Sign up to view the full content.
Unformatted text preview: -large meteorite, -mass extinction of large vertebrates (dinosaurs) and mollusks www.pbs.org/wgbh/evolution/change/deeptime/index.html Evolution:-1.8 bya: eukaryotes evolve-1.2 bya: fungi, animals, plants, algae diverge-900 mya: soft-bodied animals, algae-Many animals required soil to evolve so there had to be some decaying plant material available for them to show up. (Fig. 21.19 in book) Diversity:-Natural selection is the primary mechanism that has shaped the great diversity of life on earth.-This vast diversity is seen in the genetic, morphological, physiological, ecological, and behavioral adaptations found across living organisms.-There is grandeur in the view of life From so simple a beginning endless forms most beautiful and most wonderful have been, and are being, evolved. - Darwin...
View Full Document
This note was uploaded on 05/02/2008 for the course BIOL 102 taught by Professor Hill/smith during the Spring '08 term at Idaho State University.
- Spring '08