Okay, so, since I didn't get a lot of help when I first posted, I'll do it again in case some people who are willing to help didn't see it. I only got two answers. I need some help matching up cell structures to the definitions. Please help me?

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Which of the following describes a negative feedback loop? when the heart rate is too high, the body sends hormones that continually increase the heart rate higher. when a pregnant woman is in labor, the body sends hormones that increase the intensity of contractions, which then increases the secretion of the same hormones. when blood sugar is too low, the body sends hormones that raise blood sugar until it reaches a typical level and hormone secretion slows. when a person is jogging, the body sends hormones that continually decrease the rate of oxygen supply to the legs.

Environmental science are unconsidered with methods to preserve natural resourcesa.trueb.false