 _carry signals that control sexual development and reproduction
sex hormones electricity nucleic acid Most plants animals genes dendrites photons
A B C D E F G H
Chemical messengers carry signals from one nerve branch to another.
Sex hormones carry signals that control sexual development and reproduction.
 _carry signals that control sexual development and reproduction (A) sex hormones (B) electricity (C) nucleic acid (D) Most plants (E) animals (F) genes (G) dendrites (H) photons