Answer the following question given this paragraph: 

Human Reproductive Anatomy The reproductive tissues of male and female humans develop similarly in utero until a low level of the hormone testosterone is released from male gonads. Testosterone causes the undeveloped tissues to differentiate into male sexual organs. When testosterone is absent, the tissues develop into female sexual tissues. Primitive gonads become testes or ovaries. Tissues that.


Q: The reproductive tissues of male and female humans develop similarly in utero until a low level of the hormone testosterone is released from male what?


A:
gonads