The weight of an object on the moon os about one sixth the weight it would have on the earth​

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

What shape would a molecule with two bound groups and two lone pairs have?

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?