Carbon is different from many other elements in that * a. it has four electrons in its outermost energy level.
b. it readily bonds with other carbon atoms.
c. it can form single, double, or triple bonds with other atoms.
d. All of the above

Why does the skin of your finger shrink when you wash clothes for a long time?

Which beat describes the brain stem

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.