External fertilization is seen is (a) Mammals and birds (c) Fishes and birds (b) Reptiles and sponges (d) Sponges and amphibians et
External fertilization is seen is (a) Mammals and birds (c) Fishes and birds (b) Reptiles and sponges (d) Sponges and amphibians et
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option (b) reptiles and words
hope it helps :-)
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