Which of the following evolved into the first amphibians?
Lobefins
Shrews
Salamanders
Turtles
Lobefins are coelacanths.
is a connecting link between
The Darwinian variations are
Which of the following is not vestigeal organ in human beings?
Gill clefts and notochord appear in the embryonic development of all vertebrates from fishes to mammals. This supports the theory of
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