Who concluded that in dna adenine levels were equal to thymine levels and cytosine were equal to guanine levels

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? the wings are analogous structures that evolved differently and do not have a similar internal structure. the wings are homologous structures that evolved differently and do not have a similar internal structure. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. wings of bats are vestigial structures, but the wing structures of birds are not vestigial.

Which is an example of a population?

To maintain asepsis when administering an injection, all parts of the syringe can be handled except the: