Evolution
- Created by: JessicaGrey
- Created on: 11-04-16 16:39
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- Evolution
- Darwin not believed at start because:
- People believed that God created everything
- Not enough scientific evidence
- No understanding of variation and inheritance (genes) at the time
- All species have evolved from simple life forms that first developed more than 3 billion years ago
- Evolution through natural selection
- 1) All living things show variation
- 2) Some of these features give an advantage
- 3) Those with an advantage live longer, reproduce and pass on these genes to offspring
- Larmark's theory
- 1)Individuals in species can change their features overtime eg giraffe stretches neck
- 2) These changes made by the living thing itself can be passed onto offspring
- Mutations- random spontaneous change in genes
- Some of these give an advantage- these live longer reproduce and offspring also get the mutation
- Causes relively rapid change in species
- Studying the similarities and differences between organisms allows us to classify living organisms into animals, plants and microorganisms
- Darwin not believed at start because:
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