Which of the following statements characterize heterospory?
A. It involves production of two different kinds of spores, one growing into male gametophytes and the other into female gametophytes.
B. It increases the chance of cross-fertilization.
C. It increases the potential for genetic variation and aids evolutionary flexibility.
D. It involves production of two different types of spores from a single sporangium.
E. It occurs in seed plants and seedless vascular plants.
Answer: C
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