Evolution

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1. What was Lamarck's theory? Why wasn't it accepted?

  • That if a characteristic was used a lot by an organism, it would become more developed during it's lifetime e.g rabbit's legs. He believed these characteristics would be passed on to the next generation. But experiments didn't support it.
  • Although experiments supported Lamarck's theory that characteristics developed during an organisms' lifetime, religion didn't support the idea.
  • If a characteristic was used a lot by an organism, it would be passed onto the next generation.
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2. Why didn't everyone agree with Darwin?

  • Because it was against ancestral beliefs, Darwin couldn't explain himself, There wasn't enough evidence.
  • Because it was against common religious beliefs, Darwin couldn't explain himself, There wasn't enough evidence.
  • Because it was against common religious beliefs, Darwin couldn't prove with an experiment, There wasn't enough data/information
  • Because it was against common religious beliefs, Lamarck couldn't explain himself, There wasn't enough evidence.

3. Describe the theory of natural selection.

  • The habitat in which a species lives in determines how succesful breeding will be within the species.
  • Individuals within a species show variation because of the differences in their genes. Individuals with characteristics that make them better adapted are more likely to survive and breed succesfully.
  • Individuals within a species show variation because of evolution of the species.
  • Genes that are responsible for the useful characteristics are more likely to be passed on to the next generation.

4. Describe how evolution can occur due to mutations.

  • MRSA is an example. A mutation which has accumulated in a population.
  • A mutation is a change in an organisms DNA, occasionally they can be beneficial by producing a useful characteristic. this characteristic may give the organism a better chance of surviving and reproducing.
  • A mutation is a broken DNA, occasionally they can be beneficial by producing a useful characteristic. this characteristic may give the organism a better chance of surviving and reproducing.

5. How did the discovery of genetics support Darwin's idea.

  • Showed how genetic mutation can result in natural selection.
  • It provided an explanation of how organisms born with beneficial characteristics can pass them on.
  • Religion finally corresponded with the idea.
  • The idea of MRSA suggested that evolution can occur due to mutations.

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