If a man's seminal fluid contained fewer prostaglandins than normal, what would one repercussion be?
A. Increased sperm motility
B. Decreased sperm count
C. Increased capacitation of sperm
D. Decreased uterine contractions
Answer: D
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Visual sensations from images focused on the side of the retina are blurred because
A. there are more cones than rods in this region. B. there are no rods in this region. C. the optic disc is located on the side of the retina. D. there are more rods than cones in this region.
Various types of macrophages are derived from
A) lymphocytes. B) monocytes. C) neutrophils. D) eosinophils. E) basophils.
A motor unit within the powerful quadriceps muscle would
A. contain several motor neurons. B. be much like those in the eye muscles. C. generally contain less than ten fibers. D. generally contain several hundred fibers.
Enlargement of muscle due to weight lifting is primarily a result of
a. enlargement of individual myofilaments b. hyperplasia c. increased production of actin and myosin d. increases in the number of cells e. Both b and d