Which of these is not a product of cellular respiration

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

Match the types of competition to their descriptions

Which enzyme is responsible for “unzipping" the dna by breaking the hydrogen bonds between the nucleotides?