Question

bio - 201l topic 2: tissues and integument
practice it
lo 2.3. endocrine glands secrete hormones directly into the bloodstream, while ___.
endocrine glands secrete their products into ducts that lead to the surface of an organ or tissue
neurotransmitters are secreted directly into the bloodstream
exocrine glands secrete their products directly into the bloodstream
hormones are not secreted by glands at all, but by individual cells throughout the body
exocrine glands secrete their products into ducts that lead to the surface of an organ or tissue

Explanation:

Endocrine glands secrete hormones directly into the bloodstream. In contrast, exocrine glands secrete their products (such as enzymes) into ducts that lead to the surface of an organ or tissue. Neurotransmitters are secreted across synapses, not into the bloodstream. Hormones are secreted by endocrine glands.

Answer:

Exocrine glands secrete their products into ducts that lead to the surface of an organ or tissue