Which is an example of an object with kinetic energy? a) a molecule of glucose b) a muscle flexing c) a serving of food d) a molecule of atp

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

What percentage of light hits earth's surface directly?

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d