Which of the following cells would not have a well–defined nucleus but would have a thick cell wall and ribosomes?

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.

Name the part of the the brain labeled "e".

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic