Which of the following organisms is a multicellular protist?
a. kelp
b. euglena
c. diatom
d. archaea

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

Which best describes how sediment forms? loose material is cemented by pressure. erosion breaks down rock and other material. molten rock cools above earth's surface. chemical changes cause sediment to compact together.

Inquiry is a process prompted by a _