The rule of embryonic development was given by

Sweet potato and potato represent a certain type of evolution. Select the correct combination of terms to explain the evolution.

Gill clefts and notochord appear in the embryonic development of all vertebrates from fishes to mammals. This supports the theory of

$Archaeopteryx$ $lithographica$, a fossilized crow-sized toothed bird, was found in Jurassic rocks in . . . . . . .

Which of the following phenomena provides important evidence in favor of chemical evolution?

The similarity of bone structure in the forelimbs of many vertebrates is an example of