Okay this might sound silly but I have a freckle on my ring finger what does that mean like does anyone know

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

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

Apart of an ecosystem that can restrict the growth of a population is referred to as