If you own a car and what to improve your fuel deficiency, what should you do after reading this advertisement? a. look for an unbiased report about the effectiveness of the motor oil: b. tell your friend to buy the motor oil. c. purchase the motor oil. d. ask the sales clerks a highway motors gas station.

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 defect of a mole of nuclei with 1.8 x 10^15 j/mol binding energy?

What is the chemical formula for dihydrogen monoxide