Male infertility (sterility) refers to ________
A) low levels of testosterone
B) a lack of seminal fluid during ejaculation
C) the inability to fertilize an egg
D) low sperm count
E) the inability to have an erection
C
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Which two forces are always opposite in direction?
A. lift and drag B. buoyancy and drag C. buoyancy and weight D. drag and weight
A temporary interruption of blood flow to the brain is a(n) ______________________________.?
Fill in the blank(s) with correct word
A person struggling with a stressful exam question might experience difficulty focusing her eyes on the paper because:
A. she suddenly develops presbyopia. B. activation of her parasympathetic nerves causes sudden contraction of her ciliary muscles. C. activation of her sympathetic nerves causes sudden contraction of her ciliary muscles. D. activation of her parasympathetic nerves inhibits contraction of her ciliary muscles. E. activation of her sympathetic nerves inhibits contraction of her ciliary muscles.
All of the following muscles are rotators of the arm. Which is a lateral rotator of the arm?
A. pectoralis major B. latissimus dorsi C. teres major D. deltoid E. coracobrachialis