Theory of Evolution-Charles Darwin
- Created by: katie
- Created on: 24-03-13 10:27
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- Theory of Evolution-Charles Darwin
- Darwin recognised that species did change and put forward a theory as to how they changed
- Finches
- The island had no predators-overpopulated
-
competition for limited food source
- Those with useful mutations survived
- Numbers remain constant/high mortality rate/struggle for survival
- Those with useful mutations survived
-
competition for limited food source
-
He noticed variation e.g. beak size
- beak adaptation, seed, insects, fruit
- adaptive radiation - finches changed what they ate, all originated from on e type.
-
morphologically similar and to mainland form- common ancestor
- similarities of proteins, enzymes
- similarities of DNA/genes
- The island had no predators-overpopulated
-
survival of
fittest
- pass on beneficial characteristic
- Repeats generation after generation
- Natural selection
- Evidence
- Fossil evidence
- Living intermediate forms
- Pentadactyl limb
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