Definition: this is a technique used to distinguish between individuals of the same species using only samples of their dna.

does anyone know the answer?

What type of lipids are found in all biological membranes?

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

In what for do plants utilize nitrogen? why do they need nitrogen?