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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An excitatory postsynaptic potential lasts for about
A) 15 milliseconds. B) 15 minutes. C) 15 seconds. D) 15 microseconds.
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
The hair cells of the cochlear duct are located in the ________.
Fill in the blank(s) with the appropriate word(s).
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