Question

In which of the following animals fertilization is external? ( )

A) Birds and fish

B) Amphibians and birds

C) Reptiles and fish

D) Fish and Amphibians​

Answer 1

Answer:

Among vertebrates, external fertilization is most common in amphibians and fish. Invertebrates utilizing external fertilization are mostly benthic, sessile, or both, including animals such as coral, sea anemones, and tube-dwelling polychaetes. Benthic marine plants also use external fertilization to reproduce.

Answer 2

Answer:

D):

Fish and Amphibians.

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