Male infertility (sterility) refers to ________.
A. the inability to have an erection
B. a lack of seminal fluid during ejaculation
C. the inability to fertilize an egg
D. low sperm count
E. low levels of testosterone
Answer: C
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The hair cells of the cochlear duct are located in the ________.
Fill in the blank(s) with the appropriate word(s).
An excitatory postsynaptic potential lasts for about
A) 15 milliseconds. B) 15 minutes. C) 15 seconds. D) 15 microseconds.
Red blood cells in the pulmonary vein would contain a higher concentration of chloride ions than red blood cells in the pulmonary artery
Indicate whether the statement is true or false
Tears are produced by the ________ and exit the eye ________.
A. lacrimal gland; medially B. lacrimal sac; laterally C. lacrimal gland; laterally D. lacrimal sac; medially