In the testes, ________ endocrine cells produce testosterone.
Fill in the blank(s) with the appropriate word(s).
interstitial
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Answer the following questions true (T) or false (F)
1. The high levels of estrogens during the luteal phase of the ovarian cycle trigger release of more FSH and LH, and their levels peak around day 14, which causes ovulation. 2. Barrier methods of birth control prevent sperm from moving beyond the vagina and include condoms, diaphragms, cervical caps, and the sponge. 3. The common viral sexually transmitted infections (STIs) are chlamydia, gonorrhea, syphilis, and trichomoniasis.
Which of the bones below does not belong to the appendicular skeleton?
A) Ethmoid B) Patella C) Ulna D) Clavicle E) Fibula
A cell that is permeable to Solute X is placed into solution containing a higher concentration of X. Diffusion occurs until equilibrium is attained. At this time,
A) there is no further movement of Solute X across the membrane. B) there is no further change in concentration of Solute X. C) Both of the statements are correct. D) Neither of the statements is correct.
An action potential in a motor neuron is ____________________ to the terminal button
Fill in the blank(s) with correct word