Which functional group of muscles tends to oppose and slow the action of prime movers?
A. Fixators
B. Agonists
C. Synergists
D. Antagonists
Ans: D. Antagonists
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________ have 46 chromosomes, whereas ________ have 23.
A. Spermatids; sperm cells B. Secondary spermatocytes; primary spermatocytes C. Spermatogonia; primary spermatocytes D. Primary spermatocytes; spermatids
Retrograde axonal transport may be responsible for movement of herpes virus, rabies virus, and tetanus toxin from nerve terminals to the cell body.
Answer the following statement true (T) or false (F)
Which is LEAST important for supporting continuing lactation after a baby is born?
A. the suckling stimulus B. emptying milk from the breast C. the secretion of oxytocin D. the secretion of prolactin E. high levels of estrogen and progesterone
The photoreceptors in the photoreceptor layer of the retina face the vitreous chamber
Indicate whether the statement is true or false.