The cells that produce testosterone in the testis are called ________.
A) spermatocytes
B) spermatogonia
C) sustentacular cells
D) interstitial cells
D) interstitial cells
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Proteins in the cell membrane that bind hormones and relay messages into the interior of the cell __________.
A)are known as transmembrane proteins B)provide cell identification C)perform a function known as signal transduction D)are known as carrier proteins
What is the function of the iris?
A. Changes the shape of the lens B. Refracts light rays C. Regulates the size of the pupil D. Absorbs stray light rays
Define flatulence
What will be an ideal response?
What event immediately precedes anaphase?
A) Chromosomes cluster at the midline of the cell. B) The mitotic spindle forms. C) The nuclear envelope forms around chromatin. D) DNA replicates.