Amixture which contains more than one phase is called .

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

Particles vibrate in a rigid structure and do not move relative to their neighbors.

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?