Analogous

Homologous vs Analogous

Vestigial StructuresWhile the forelimbs slowly evolved into flippers, the hind limbs

Slowly disappeared and all that is left is a few tiny bones.

Several Examples

The Appendix

Wisdom teeth in humans

Blind Cave Fish

Wings on Flightless birds

Comparative Embryology

Photo’s vs drawings (remember the phospholipid and ATP drawings?)

Comparative Biochemistry

Comparative Biochemistry

• Water?• DNA?• Protein functions?

DNA

Other processes…

• Protein synthesis• DNA replication• Mitosis• Cellular Respiration• Etc….

Responses to the statement, “Human Beings, as we know them, developed from earlier species of

Animals”