Polyembryony is common in gymnosperms because a(n) :
A) seed produces several ovules.
B) ovule produces several megasporangia.
C) megasporangium produces several megaspores.
D) megagametophyte produces several archegonia.
E) archegonium contains several eggs.
Correct Answer:
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Q7: After fertilization, the integuments develop into the:
A)seed
Q8: In which gymnosperms do multiflagellated sperm swim
Q9: A micropyle is a(n):
A)nutritive structure of the
Q10: In which of the following groups is
Q11: The fossil record indicates that the integument
Q13: Just before fertilization, a gymnosperm ovule contains:
A)an
Q14: In seed plants, the _ is called
Q15: In gymnosperms, pollination occurs usually by:
A)insects.
B)water.
C)wind.
D)birds.
E)mammals.
Q16: The progymnosperms had characteristics intermediate between those
Q17: With the evolution of the ovule, the
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