Respuesta :
Answer:
Hormones and neurotransmitters are different chemical messengers, the former produced by the endocrine glands and the latter by the nervous system. ... However, neurotransmitters' actions are short-lived while hormones act for longer periods of time.
Answer: Neurotransmitters are proteins, amino acids or gases. Hormones are produced in endocrine glands and are secreted into the blood.
