NEET Biology question
Fill up the blanks in the following paragraph by selecting the correct option. A. (i) methods work on the principle of avoiding the chances of ovum and sperms meeting. B. (ii) is one such method in which couples avoid coitus from day 10 to 17 of the menstrual cycle. C. (iii) is another method in which the male partner withdraws his penis from the vagina just before ejaculation so as to avoid insemination. D. (iv) method is based on the fact that ovulation does not occur during the period of intense lactation following parturition.
Solution
Natural methods collectively work by avoiding the meeting of ovum and sperm, with periodic abstinence specifically avoiding coitus from day 10-17, coitus
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