7. Use the following formula to calculate the kinetic energy of a boy with a mass of 100 kg running at a speed of 2 m/s. Kinetic energy = • mass • speed?
200 ]
100 ]
150]
75]

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

Look at the photo of the leaf. which term best describes this leaf?

Which of the following forest management practices is best for reestablishing areas of forest?