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Math Help - Dry mass

  1. #1
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    Dry mass

    This is a question that confused me in the exam:

    Which of the following does not invlolve a change in dry mass?
    A) Growth of shoot towards light
    B) Germination of seed under soil
    C) Development of fetus in a mother's uterus
    D) Growth in size of bacteria before splitting in two for reproduction

    I choose B, I hope I am right... does anyone know the answer to this question?

    Thanks :-)
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  2. #2
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    Just checking the first word, I would have to agree.

    Growth, Germination, Development, Growth

    Three are growth and one is a change of state.
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  3. #3
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    Quote Originally Posted by TKHunny View Post
    Just checking the first word, I would have to agree.

    Growth, Germination, Development, Growth

    Three are growth and one is a change of state.
    hmm, so I know that growth is the irreversable increase in dry mass, so it is either development or germination.....
    but don't the fetus like get heavier?
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  4. #4
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    No, no. There is no growth at germination. There is growth AFTER germination.
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  5. #5
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    Quote Originally Posted by TKHunny View Post
    No, no. There is no growth at germination. There is growth AFTER germination.
    ahh I see.
    Thanks :-)
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