Exam-style Questions: Evolution
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Charles Darwin was famous for his "natural selection" theory. Jean Baptiste de Lamarck had a different idea - that plants and animals evolve features according to how much they use or need them.
What experiment / findings disproved Lamarck's idea?
(Marks available: 2)
Answer outline and marking scheme for question: 1
When mice that had their tails cut off, they still gave birth to baby mice with tails.
(Total = 2 marks)
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Name 3 causes of extinction.
(Marks available: 3)
Answer outline and marking scheme for question: 2
- A rapid environmental change to which they cannot adapt to (i.e. food / industry).
- A new threat (i.e. new predator / disease).
- Failure to compete successfully against new species.
(Total = 3 marks)
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Give the main pro and con of a mutation in an organism.
(Marks available: 2)
Answer outline and marking scheme for question: 3
Pro: Can give the organism a better chance of survival.
Con: Can give rise to things like inherited diseases.
(Total = 2 marks)