Assertion: endocrine system's hormone | /r/HasProperty | secreted by gonad
Facets:
Source sentences:
text: For example, one of the most intensively studied systems for understanding hormone actions on target tissues has been the receptors for progesterone and estrogens (hormones secreted by the gonads) from the oviducts of chickens.
text: Steroid hormones are secreted by the gonads , adrenal cortex, and placenta .