What changes based on the strength of gravity

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 structure in the cardiovascular system connect arteries to veins?

Which anatomical plane is the only one that could not show both the sternal region and vertebral region