Which of the following statements (which are all true) could contribute to a plausible hypothesis for why the alternation of generations evolved in the earliest land plants?
A) There were fewer chances for successful fertilization events on land compared with the ancestral fully aquatic environment.
B) Gametophytes lack the ability to form rigid (lignified) vascular tissues.
C) The biopolymer sporopollenin first evolved to protect the diploid stage of green algae.
D) Many gametophytes tolerate dessication.
Correct Answer:
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