What eventually happens to lactic acid? is removed through the bloodstream
O
turns into muscle
O
is used by the body for energy
turns into ATP molecules

Foods that fill your body with sugar and fat but little else, are said to contain

Me d: which system contains the heart, blood, and blood vessels? a. muscular b. circulatory c. respiratory d. digestive which system contains the pituitary, adrenal, and thyroid glands? a. respiratory b. circulatory c. endocrine d. reproductive

1. controls how much sugar is in the blood pancreas 2. controls the other glands pituitary gland 3. manufactured by the brain to relieve pain thyroid 4. gland that regulates the body's energy levels endorphins