Multiple Choice
Lignin first appeared in the ferns and their relatives; this adaptation allowed these plants and their descendants to
A) inhabit arid regions such as deserts.
B) resist the assault of herbivorous consumers.
C) tolerate the anoxic soil conditions in the swamp habitats they occupy.
D) grow upward to better access sunlight.
Correct Answer:

Verified
Correct Answer:
Verified
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