A) Absence of seed
B) Absence of vessels in xylem
C) Need water for fertilization
D) Heterosporous condition
Correct Answer: D
Solution :
Heterosporous condition (Produce of two kind of spores i.e., Megaspore and microspore) found in selaginella and Homosporous conditions (Produce one kid of spore) found in pteris (fern).
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