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Flashcards · Biology · Evidence for Evolution and Classification

Darwin, Lamarck and the Theory of Evolution

15 cards

  1. Who proposed the theory of evolution by natural selection?

    Charles Darwin.

  2. What was the name of Darwin's ship?

    HMS Beagle.

  3. Which years did Darwin's voyage take place?

    1831 to 1836.

  4. When did Darwin publish On the Origin of Species?

    1859.

  5. What are the three ideas of natural selection?

    Variation, survival of the best suited, and passing on the characteristics.

  6. Why did Darwin delay publishing?

    He spent years gathering evidence, until Wallace's letter prompted him.

  7. Give one reason why the theory was only gradually accepted.

    It challenged the idea that God made all the animals and plants.

  8. Give another reason why it was only gradually accepted.

    There was insufficient evidence at the time.

  9. What was not known until 50 years after publication?

    The mechanism of inheritance and variation.

  10. What did Lamarck suggest?

    Changes that occur in an organism during its lifetime can be inherited.

  11. Is Lamarck's idea correct?

    In the vast majority of cases, this type of inheritance cannot occur.

  12. How would Lamarck explain the long neck of a giraffe?

    The giraffe stretched its neck and passed on the longer neck.

  13. How would Darwin explain the giraffe's neck?

    Variation: those with longer necks survived and passed on their alleles.

  14. What did Darwin see on the Galapagos Islands?

    Finches with beaks of different shapes suited to their food.

  15. Was Darwin's theory developed by one person only?

    No. It developed from information gathered by many scientists.