Why is the nucleus of the cell important? A. All of the chemical reactions for the cell take place in the nucleus.

B. It produces food for the cell.

C. Waste leaves the cell through the nucleus.

D. It controls all the activities of the cell.

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.

When ash and dust begin to settle on the ground, they eventually become compacted by

Which measure of an earthquake depends on how close you are to the focus?