What is a species?
- Organisms that can breed together successfully
BASIC 6 MARK ANSWER TO A 6 MARK SYLE QU ABOUT SPECIATION:
- A population is seperated
- By a barrier e.g. mountains
- Mutations occur
- Favourable mutations/genes are selected --> natural selection
- Leading to genetic variation
- Over time there DNA is too different
- So they can no longer interbreed successfully
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