Oral contraceptives work by _____.
A. changing the pH of the uterus so sperm cannot live
B. changing the temperature of the uterus so sperm cannot live
C. blocking the entrance to the uterus
D. killing sperm
E. preventing ovulation
Answer: E
Biology & Microbiology
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What will be an ideal response?
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Fill in the blank(s) with correct word
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