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STD 12 - 3. reproductive health — BIOLOGY STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 3. reproductive health1 Mark
MCQ
Natural methods of contraception
  • A
    Increase spermicidal activity
  • ✓
    Prevent fertilisation
  • C
    Decrease mortality
  • D
    Increase mortality
✓

Answer

Correct option: B.
Prevent fertilisation
b
Natural method of contraceptive are the natural ways to prevent fertilisation. These methods are $(i)$ Periodic Abstinence Couple avoid coitus or intercourse from day $10$ to $17$ of the menstrual cycle when ovulation is expected to occur $(ii)$ Coitus interruption or withdrawl method Withdraw of penis from the vagina just before ejaculation so as to avoid insemination $(iii)$ Lactational Amenorrhoea (Absence of menstruation) This method is based on the fact that ovulation and therefore the cycle don't occur during the period of intense following parturition. Therefore, as long as the mother breast feeds the child, chances of conception are almost nil

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