Question

multiple choice question
what do simple tubular exocrine glands look like?
o straight, tube - like glands that open directly onto a surface
o unicellular, merocrine glands
o glands made of several branched ducts
o multicellular glands that empty into the bloodstream
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Explanation:

Simple tubular exocrine glands are straight, tube - like structures that open directly onto a surface. Unicellular, merocrine glands are different in structure. Glands made of several branched ducts are branched glands. Multicellular glands that empty into the bloodstream are endocrine glands, not exocrine.

Answer:

straight, tube-like glands that open directly onto a surface