You put a solid in water and it floats but doesn't dissolve.
a) the density of water equals the density of the solid
b) the water's density is greater than that of the solid
c) the water's density is less than that of the solid

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

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from

Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles