Birds and mammals independently evolved four-chamber hearts
Answer:
Sweating helps cool down the body. Water is released through glands in the skin, evaporates off the skin and the body is cooled. During exercise, muscles heat up more, so more sweat is needed.
Explanation:
The pancreas is connected directly into the small intestines and gallbladder.
Enzymes that are produced by the pancreas are secreted directly into the small
<span>intestine.</span>
