Acomplex network of glands that release tiny amounts of hormones into the bloodstream of humans and other vertebrate animals is the

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

Leila has dimples because she received a gene copy from her father that coded for dimples. this means that dimples are an example of a trait that is

Which of the following is not considered an appendage of the skin? nails glands follicles none of the above