Julio went out to play football. After a couple of hours, the temperature got very hot. Then he started sweating while the sunrays burned his skin
Which body systems are interacting in this scenario?

Ineed to know why d is the correct answer asap

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

Explain how the political influence of african americans leaders became weaker.