Of the four haploid cells produced by a pine cone's megasporocyte (megaspore mother cell), _____ survive(s).
a) one
b) integuments
c) four
d) three
e) two
Ans: a) one
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Which of the following structure-function pairs is mismatched?
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Which organism would be most likely to be able to survive rapid global climate change?
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Many microbes use pyruvate carboxylase or phosphoenolpyruvate carboxylase ________.
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