What travel throughout the body in the blood?
testes matter vibrating zygotes gametes kinetic energy chemical messengers Veins and arteries. electromagnetic energy
A B C D E F G H
Hormones, produced by the endocrine system, act as chemical messengers targeting specific organs.
chemical messengers travel throughout the body in the blood
What travel throughout the body in the blood? (A) testes (B) matter vibrating (C) zygotes (D) gametes (E) kinetic energy (F) chemical messengers (G) Veins and arteries. (H) electromagnetic energy