Respuesta :
The endocrine system consists of glands that secrete
chemical messengers, called hormones, into the bloodstream.
hypothalamus, pituitary, pineal, thyroid, parathyroid, thymus, adrenal,
pancreas, and gonads.
Answer:
The correct answer is the endocrine system and 2nd one on edgunity is exocrine
Explanation:exocrine is the only system substances through ducts and endocrine contains glands that secrete hormones into bloodstream