Extinction and Speciation
- Created by: Laurenskye
- Created on: 10-05-16 15:42
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- Extinction and Speciation
- Extinction happens when an organism cannot evolve fast enough
- Reasons
- The environment changes too quickly
- New predator kills them all.
- New disease kills them all.
- Cannot compete with others for food.
- A catastrophic event
- A new species develops
- Reasons
- Speciation is the development of a new species
- Isolation and natural selection
- Isolation is where populations are separated due to a physical barrier.
- Conditions on either side of the barrier will be slightly different
- Because of this different characteristics will become more common in each population due to natural selection
- Conditions on either side of the barrier will be slightly different
- Isolation is where populations are separated due to a physical barrier.
- Isolation and natural selection
- Extinction happens when an organism cannot evolve fast enough
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