Plants contain the carbohydrates starch and cellulose. In the spring when stem growth is at its fastest rate, cellulose production rates are increased in some plants. In the months with less sunlight, the level of starch decreases in some plants. What does this information
demonstrate?

8) animals respond in various ways to stimuli detected through their senses. some of these responses are stimulated by the presence of danger. which of these animal responses is the best example of a response to an immediate threat? a) a rooster crows every morning at the first sign of light. b) as something approaches an octopus, it shoots a cloud of ink. c) from late fall until spring, bears hibernate to preserve energy. d) a dog is getting hot in the sunlight, so he moves to a shaded area.