Adaptation and Evidence for evolution. What’s the adaptation?
Post on 22-Dec-2015
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• Changes over time in response to the environment that increase a species chance of survival.
• Adaptations develop in a species over time
Other Evidence of Evolution
1. Fossil record
2. Comparative Anatomy
3. Comparative Embryology
4. Biochemistry
1. The Fossil Record– Older, simpler fossils precede more complex,
younger fossils– Fossils show progression
• B. Homologous structures. Structural similarity of body features. Humors, radius, ulna in forelimbs of vertebrates
4. Biochemistry- Molecular evidence of evolution. Comparison of DNA or AA sequence between different species
– Chimpanzee & Human DNA are 99% identical– Bird & human DNA are only 60% identical– Plant and Human DNA are only 10% identical
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