Which class is the first class of vertebrates?

  • A
    Aves
  • B
    Reptilia
  • C
    Mammalia
  • D
    Amphibia

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Similar Questions

Choose the correct sentence for $Amphibia$.

Which of the following is a limbless amphibian?

Statement $X$: The skin of amphibians acts as a respiratory organ.
Statement $Y$: Amphibians lack an exoskeleton and have moist skin.

Caecilians belong to the order

$A$ toad is different from a frog in having

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