Across
2. tool that shows wind
direction
3. temperature scale where
water freezes at 32 degrees
and boils at 212 degrees.

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 is the mass of 4 molecules of co2

Under normal conditions, describe how increasing the temperatures effects the solubility of a typical salt