Unformatted text preview: a. Examples: human goose bumps[ useful for dogs so they look bigger etc.] also wisdom teeth was useful for cave mens diet. 6. Homology- similarity due to inheritance from common ancestor a. Structural homology: mammalian forelimbs for human arms, whale fins and bat wings. Which proved for common ancestry b. Developmental homology similarities during development such as embryos of chickens and humans[both have a tail and pharyngea pouches] c. Molecular homology: similiarites at the molecular level such as genetic code and genetic flaws [ chromosome 17 in humans] look at slide 4 i. Used for drug tests on rats and cotton to kill pests etc. 7. Direction observation of changes in skypilot flowers who are pollinated by bumblebees are bigger than randomly pollinated ones in the timberline....
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- Fall '07
- Evolution, transitional form, Irish Elk, region Transitional forms, randomly pollinated ones