The oldest well-documented flowering plant fossils date to about ____ years ago.
A) 1.5 billion
B) 420 million
C) 125 million
D) 250 million
E) 17 million
Correct Answer:
Verified
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
Q27: In pines, the mature male gametophyte is
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
Q33: Various cycad tissues produce _, which may
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