Which three continents contain coal fields that provide evidence for continental drift? A. Africa, Antarctica, and North America
B. Eurasia, Africa, and South America
C. Antarctica, South America, and Africa
D. South America, North America, and Eurasia
(I'm on a time limit so pls hurry)

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.

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

List five ways we are indebted to phytoplankton