Steroid hormones
A) are proteins.
B) cannot diffuse through cell membranes.
C) bind to receptors in the nucleus of their target cells.
D) act on target cells by activating second messenger cascades.
E) are transported in the blood dissolved in the plasma.
C
Anatomy & Physiology
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Sperm mature in the ________.
A. seminal vesicles B. epididymis C. testes D. seminiferous tubules
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In all organisms, the basic unit of structure and function is
A) the atom. B) the macromolecule. C) the cell. D) the molecule.
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Goats normal body temperature is between 101-102 degrees
Indicate whether the statement is true or false
Anatomy & Physiology