Evidence of Evol_web

Evidence of Evol_web - Evidence of evolution 1. 2. 3. 4. 5....

Info iconThis preview shows pages 1–12. Sign up to view the full content.

View Full Document Right Arrow Icon
Evidence of evolution 1. Artificial selection 2. Biogeography 3. The fossil record 4. Comparative anatomy 5. Comparative embryology 6. Molecular biology 7. Natural selection in action (main sources, but not all)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Evidence of evolution 1. artificial selection Photos of breeds of dogs
Background image of page 2
Evidence of evolution 1. artificial selection - demonstrates that organisms can change
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Evidence of evolution 1. artificial selection - demonstrates that organisms can change - there has been enough time for the diversity of organisms on earth to have evolved.
Background image of page 4
Evidence of evolution 1. artificial selection - demonstrates that organisms can change - there has been enough time for the diversity of organisms on earth to have evolved (The earth is 4.6 billion years old; life began 3.5 billion years ago.)
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
All dogs evolved from wolves in ~15,000 years*. Therefore 3,500,000,000 years is enough time for all other life forms to have evolved. *Savolainen, Y. et al. 2002. Genetic Evidence for an East Asian Origin of Domestic Dogs. Science 298: 1610-1613
Background image of page 6
2. Biogeography Similar looking species on widely separated islands but similar environments often are most closely related to species on the nearby mainland, rather than to each other. Species from same area are usually more closely related to other species from same area than to species with same way of life from other areas. - the geographical distribution of species Can not be explained by a “creator” individually placing species in suitable environments.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Fig 22.20 a marsupial a placental = eutherian called “convergent evolution”
Background image of page 8
3. fossils organisms are found in a historical sequence.
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
younger older
Background image of page 10
3. fossils
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 12
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 37

Evidence of Evol_web - Evidence of evolution 1. 2. 3. 4. 5....

This preview shows document pages 1 - 12. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online