Suppose that you are a scientist who studies climate changes. while examining the rings of tree trunks, you notice several very large tree rings. what can you conclude about the climate during those years?

its temperature is increasing. this causes molecular vibrations to increase.

the growth of the plants is affected by the heat of the light. what is the student doing?

in addition to being able to metabolize, grow, digest food, and excrete wastes, what other functions must an organism perform if it is to survive? survival also depends on the ability to maintain one's boundaries, to move, to respond to stimuli, and to reproduce. oxygen is a survival need.