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An Intiative by Sri Chaitanya
a
Organisms showing external fertilization produce a large number of male gametes only.
b
External fertilization is very uncertain requires synchrony between release of male and female gametes.
c
It is replaced by internal fertilization in higher organisms as it wastes energy and requires external medium like water.
d
It occurs in most of the fish and amphibians.
answer is A.
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