alleryHormonal contraceptive pills act primarily by:
ASuppressing ovulation
BKilling sperm in the uterus
CBlocking the fallopian tube physically
DRemoving the uterine lining
Answer & Solution
Correct answer: A. Suppressing ovulation
1. Oral pills contain oestrogen and progesterone analogues.
2. These suppress the LH surge that triggers ovulation.
3. Without ovulation, no egg is released and pregnancy cannot occur.
_Source: syllabus Science, Ch 7 "How do Organisms Reproduce", §7.3.4_
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