Answers.Evol

Population Genetics & Evolution
Evolution Answers

     Evolution Review Answers:

     1.  E - This is the only option showing the correct sequence of events as stated in the Heterotroph Hypothesis. Organic molecules and compounds had to be present initially so that heterotrophs had a food source. Finally, autotrophs evolved due to scarcity of food.

     2. I - Charles Darwin proposed the Theory of Evolution by Natural Selection after collecting much data on the Galapagos Islands.

     3. H - Jean Baptiste de Lamarck proposed the Theory of Acquired Characteristics, which was later disproven.

     4. E - Francesco Redi disproved abiogenesis with his experiment involving meat, maggots and flies.

     5. F - Thomas Malthus stated that organisms of the same species compete for limited resources due to over-reproduction.

     6. B - John Needham used his faulty experiment dealing with gravy to support abiogenesis.

     7. F - This describes stabilizing selection, which is a type of natural selection.

     8. A - Homologous structures result from divergent evolution, sharing a common ancestor.

     9. C - Vestigial structures no longer have a function for the organism.

     10. E - Allopatric speciation can occur when genes no longer mix between two populations that are separated by some kind of a geographical barrier.

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