What must be true when two substances form a mixture? A. they are the same size
B. they are two of the same type of substance
C. they are both metals
D. they do not react chemically

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.

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

What is the cause hearing loss in human being