Fertility Is Impaired When a Male's Sperm Count Drops Below

question 63

Multiple Choice

Fertility is impaired when a male's sperm count drops below _____ sperm per milliliter of semen, and he is considered sterile if his sperm count drops below _______ sperm per milliliter of semen..

• A) 500 million; 200 million
• B) 100 million; 50 million
• C) 35 million; 20 million
• D) 2 million; 1 million
• E) 500,000; 100,000

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Definitions:

Swinging

Refers to the practice of extradyadic sex with members of another couple.

Monotonous

Lacking in variety and interest; tediously unvarying.

Dopamine

A neurotransmitter involved in reward, pleasure, and motor function in the brain.