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How did Lamarck and Darwin differ in their thinking about species?

A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment.

B. Darwin thought that change could occur in individual organisms, while Lamarck thought that change could only occur across generations.

C. Darwin thought that genes controlled a species' ability to survive, while Lamarck thought that genes were only one part of a species' ability to adapt.

D. Darwin thought that organisms had to struggle to survive, while Lamarck thought that organisms could make adjustments when conditions became difficult.

Is this C, Ms.Sue?

  • Science - ,

    Jean-Baptiste Lamarck's thought that animals and plants adapted to their changing surroundings in their lifetime and then passed on these changes to their offspring. The classic example that he cited was a giraffe- he said that a giraffe's neck got longer as it stretched for leaves higher up on trees. This made its neck and bit longer, so its offspring had necks a bit longer too. Darwin’s theory of evolution is basically 'Survival of the Fittest" or "Natural selection." Genetic mutations occur in every species.


    This is just some stuff I found in my textbook, hope it helps a little...

  • Science - ,

    Thank you, it helps a lot. But, I am still very confused as to whether the answer is C or D.

  • Science - ,

    I think its D

  • Science - ,

    1.A
    2.D
    3.A
    4.D
    5.D
    6.B
    7.D
    8.D
    9.A
    10.D
    11.B
    12.C
    13.C
    14.B
    15. common ancestor
    16. punctuated equilibrium
    17. adaptation
    18. overproduction
    19. body
    20. artificial selection
    21. inheritance
    22. homologues structures
    23. older

    These are the answers for the whole assignment.

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