Running drills are drills that always vary in intensity
Answer : part of the male reproduction system
Explanation: the testes are where the sperm are produced
Answer:
1. controls how much sugar is in the blood - pancreas
2. controls the other glands - pituitary gland
3. manufactured by the brain to help relieve pain - endorphins
4. gland that regulates the body's energy levels - thyroid
Explanation:
The pancreas is an endocrine organ releases hormones such as insulin and glucagon that regulates blood sugar levels.
The pituitary gland is a gland in the brain that releases hormones that control other glands to regulate various body processes such as stress and growth.
Endorphins are produced and stored in the pituitary gland that block pain signals and produce a feeling of euphoria
The thyroid gland releases thyroxine and other hormones that control the levels of energy in the body.
