Extinction and Speciation
- Created by: Azzab123
- Created on: 11-05-14 19:15
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- Extinction and Speciation
- Extinction happens if you can't evolve quickly enough
- Environment Change ( eg destruction of habitats)
- New Predators kill them all ( eg hunters)
- New Disease kills them all
- Can't compete with another species for food
- Catastrophic Event ( eg Volcano eruption)
- Speciation - the development of a new species
- A species is a group of similar organisms that can reproduce to give fertile offspring
- Speciation occurs when populations of the same species become to different that they can no longer breed together to produce fertile offspring
- Isolation and natural selection lead to speciation
- Speciation - the development of a new species
- A species is a group of similar organisms that can reproduce to give fertile offspring
- Speciation occurs when populations of the same species become to different that they can no longer breed together to produce fertile offspring
- Isolation - where populations of a species are separated due to a physical barrier eg floods and earthquakes
- Conditions on either side of the barrier will have different conditions eg different climates - animals will have to adapt.
- Eventually, individuals from different populations will have changed so much that they won't be able to breed with one another.
- The two groups will become separate species
- Speciation - the development of a new species
- Extinction happens if you can't evolve quickly enough
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