1. They both studied the evolution of species.
2. 1744-1829
3. “The law of use and disuse” and “the law of inheritance of acquired characteristics”.
4. Lamarck thought that:
– if a species uses a characteristic, the characteristic becomes bigger and stronger;
– if a species doesn’t use a characteristic, the characteristic disappears;
– if a characteristic is improved, the offspring will have it too.
5.
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Lamarck’s theory |
Darwin’s theory |
a. In a generation all giraffes’ necks grow longer because they use it to get the food on high branches. |
X |
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b. Some giraffes have a longer neck than others naturally. Only these giraffes will survive because they can get the food on high branches. Only these giraffes will have offspring. |
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X |
c. The best adapted specimens survive. |
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X |
d. A generation adapts to its environment. |
X |
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e. The characteristics evolve in one generation. |
X |
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f. The characteristics evolve over many generations. |
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X |
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Créé en janvier 2008
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