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Darwin and evolution_part_1 (1)


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Darwin and evolution_part_1 (1)

  1. 1. armadillo sloth mockingbird Giant tortoise finchcormorant hawk
  2. 2. Think aboutDarwin´sobservations andhow he began toform ideas ofevolution.
  3. 3. 1. What was Darwin´s job on the HMS Beagle? (p.140)2. Define species (p.141)3. What observation did Darwin make about animals from South America and those on the Galapagos? (p.142)4. What reason did Darwin use to explain the differences he saw between the organisms from South America and those on the Galapagos? (p.142)5. Define adaptation (p.143)6. Define evolution (p.143)7. Define natural selection (p.144)8. Explain the difference between overproduction, competition, variation and selection (pps. 144-145)
  4. 4. The process of Selective Breeding gave Darwin ideas about Evolution
  5. 5. BA
  6. 6.  = Process where individuals with traits beneficial for their environment are more likely to survive Natural selection causes evolution = change in inherited characteristics of a population (not individuals) from one generation to the next
  7. 7. What happens to the number of green beetles? Why are there only orange beetles?
  8. 8. = populations producemore offspring than can possibly survive
  9. 9. = Every population has variation.Much of this is due to inherited traits.
  10. 10. = In specific environmentscertain traits are more advantageous andthey make the individual more likely tosurvive (therefore passing on the trait morefrequently).
  11. 11. = Over time, traits thatimprove survival and reproduction becomemore common.