Lamarck's and Darwin’s Theory of Evolution
Storyboard Text
- Darwin's and Lamarck's theories of evolution both agreed that organisms changed to be better suited to the environment.
- Such as being taller
- Lamarck's theory was based on organisms adapting ot the environment over their lifetime and then passing this on to their offspring.
- He thought girrafes had longer necks as they stretched to eat leaves from high up trees during their life.
- Darwin's theory of evolution believed that members of a species were born with 'variations'.
- Some of variations allowed for better survival and chance at reproduction and thus over time, these variations would be spread to future generations
- The members with the best suited variations survvied and reproduced, whilst others died. This is what we call natural selection.
- Darwin's theory became more accepted than Lamarck's as it had more evidence. Lamarck's theory assumed that organisms got more complicated over time, disregarding single cell organisms.
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