Sediment is usually deposited by the stream at locations where the stream A. increases in potential energy
B. decrease in velocity
C. increases in slope
D. decrease in width

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

How does concentration affect reaction rate

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o