Question: You are presented with the question "what travels throughout the body in the blood?" and the following answer choices: - chemical messengers - carbon monoxide - Veins and arteries. - bacterial messengers - density - kinetic energy - electromagnetic energy - matter vibrating Now knowing that endocrine hormones travel throughout the body in the blood and hormones are the chemical messengers of the body's endocrine system, choose the best answer.
Answer:
chemical messengers