Answer:
pancreatic islets (Islets of langerhans)
it functions mostly to regulate blood sugar levels, secreting the hormones pancreatic polypeptide , glucagon, somatostatin, and insulin. As a part of the digestive system.
Answer:
B
Explanation:
i believe if its improving your ability to do something physically, it is a type of physical fitness
Answer:
Look below
Explanation:
They reflect essential body functions, including your heartbeat, breathing rate, temperature, and blood pressure.