An organism obtains food, shelter, and other resources from its

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

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

Plants that have reproductive structures called cones are?