Carbon tends to form 4 bonds. what kind of bonds are they?

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

Will someone me with this.. specialized cells which perform a particular function form: tissues organs or organism

Cells are adapted to preform specific functions. which of the following terms refers to this capability?