Describe the general process of ethanol fermentation

How many variables are altered in a good experiment? a.1 b.0 c.2 d.3

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

Talking listening and reacting non verbally are all part of communicating