With the evolution of the ovule, the unit of dispersal shifted from the megaspore to the:
A) sperm.
B) egg.
C) microspore.
D) megaspore mother cell.
E) seed.
Correct Answer:
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Q12: Polyembryony is common in gymnosperms because a(n):
A)seed
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
Q18: Which of the following is NOT a
Q19: Which of the following statements about conifers
Q20: A seed is composed of a(n) _
Q21: Which of the following statements about pine
Q22: The seed-scale complex of an ovulate cone
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