The _______ are endocrine organs active only during specific life cycle stages. A. ovary and testes. B. hypophysis and pineal body. C. placenta and thymus. D. kidneys and pancreas.
The Placenta and thymus are endocrine organs active only during specific life cycle stages.
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eshe22|Points 4658|
Asked 1/28/2018 8:30:38 PM
Updated 1/29/2018 1:57:18 AM
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