Question

why do frogs produce a large number of gametes

Answer 1

Survival of the species ! Many eggs laid in water are eaten by fish and other animals. Laying hundreds or perhaps thousands of eggs increases the chance that at least some of them will survive to hatch out.

Answer 2

ɯԋყ ԃσ ϝɾσɠʂ ρɾσԃυƈҽ ʅαɾɠҽ ɳυɱႦҽɾ σϝ ɠαɱαƚҽʂ ??