1. Exohormones are chemical messengers that are produced in one organism and have an effect on another organism.
外分泌激素是在一个生物体内产生并对另一个生物体产生影响的化学信使。

2. The exohormones secreted by the adrenal glands play a crucial role in regulating various physiological processes in the body.
肾上腺分泌的外分泌激素在调节身体各种生理过程中起着至关重要的作用。