The roller coaster in this interactive is a model. In real life, not all of the potential energy of the coaster cars is converted to kinetic energy and back again; some
mechanical energy is converted to thermal energy. Describe how mechanical
energy gets converted to thermal energy along the track. How does this
conversion affect the potential energy and kinetic energy during the ride? *

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

Which best describes what you will do in the reaching your academic potential course?

Which type of respiration takes place when there is no oxygen present