The progymnosperms had characteristics intermediate between those of the ______ and those of the ______.
A) Paleozoic ferns; gymnosperms
B) Paleozoic ferns; angiosperms
C) seedless vascular trimerophytes; seed plants
D) seedless vascular trimerophytes; modern ferns
E) seedless vascular trimerophytes; rhyniophytes
Correct Answer:
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Q11: The fossil record indicates that the integument
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.
Q17: With the evolution of the ovule, the
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
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