Water is
a) crucial to all life
b) essential to all life
c) not that important
d) found on most planets

Next pretest: evolution select the correct answer in a laboratory population of flies, the female flies are gray and the males are yellowish gray. biologists observed that all the male flies had an equal chance for reproduction, but the male flies with the brightest colors were more likely to successfully reproduce. what phenomenon could explain such a change? a sexual selection b. disruptive selection c. stabilizing selection d. directional selection

What types of energy transfers and energy transportations are involved in the domino chain reaction?

Which of the following is the earliest era of earth's geologic time scale? cenozoic mesozoic precambrian paleozoic