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Vilka [71]
3 years ago
8

Which structure secretes hormones directly into the bloodstream without using a duct?

Biology
2 answers:
antoniya [11.8K]3 years ago
7 0
The answer is <span>adrenal gland.

</span><span>Hormones are chemical signaling molecules secreted by glands, either endocrine or exocrine. </span><span>Endocrine glands secrete hormones directly into the bloodstream without using a duct, unlike the exocrine glands. Endocrine glands include pancreas, hypothalamus, pineal gland, pituitary gland, thyroid gland, parathyroid gland, adrenal gland, ovaries, testes</span>
astraxan [27]3 years ago
4 0

Adrenal gland, just took the quiz

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