About how many cells are in an adult human body

Biology 1c cumulative exam i need awsners

Imagine ? person stepping on a pin and pulling his or her foot way look at the réfléchir arc of the scenarios below

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