In pines, the mature male gametophyte is called the ____.
A) flagellated sperm
B) pollen cone
C) pollen tube
D) pollen grain
E) pollination drop
Correct Answer:
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Q22: In pine trees, megaspores develop within a(n)
Q23: The cycad lineage probably arose from _.
A)
Q24: The _ phylum contains one living vascular,
Q25: In the pine life cycle, microspores are
Q26: About 80% of all living gymnosperm species
Q28: The oldest well-documented flowering plant fossils date
Q29: Which trait is a characteristic of most
Q30: One of the two main angiosperm clades,
Q31: The "naked" seeds of conifers develop _.
A)
Q32: The _ phylum consists of vascular, seed-bearing
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