What is the name of the theory that explains why mountain ranges in africa and south america line up? pangaea theory landmass theory continental drift theory plate movement theory

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.

Contrast how pollination is different among gymnosperms and angiosperms.

Which statement describe events that occur during interphase?