What happens during photosynthesis?
a)heterotrophs produce atp.

b)autotrophs produce carbohydrates.

c)autotrophs consume carbohydrates.

d)heterotrophs consume atp.

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

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

Glycogen is an energy-storage molecule in humans. a hormone that is called insulin controls the storage of glycogen in the liver. insulin is made up of amino acids.