In the lipid bilayer of the plasma membrane, the hydrophobic tails of the phospholipids orient toward the center of the membrane, away from water
Indicate whether the statement is true or false
T
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When the testes are exposed to cool temperatures,
A. the scrotal septum opens, allowing the testes to share warmth. B. the dartos and cremaster muscles contract to bring the testes closer to the body. C. testosterone production stops. D. there is an increase in sperm production. E. None of the choices is correct; the testes are not affected by temperature.
Which bone is a part of the skull and not just associated with it?
A. Incus B. Malleus C. Hyoid D. Stapes E. Vomer
Water absorption from the proximal tubule is mainly driven by the active reabsorption of Na+.
Answer the following statement true (T) or false (F)
Sebaceous glands discharge an oily, waxy secretion called ________.
Fill in the blank(s) with the appropriate word(s).