Class XII Biology
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187 questions in this chapter
Question 101 of 187
π CLASS XII
Many young, urban, working couples have even adopted a β________ child normβ to control population growth.
As a measure to check population growth, many couples, particularly young, urban, working ones, have adopted a βone child normβ.
Question 102 of 187
π CLASS XII
Statutory raising of the marriageable age of the female to 18 years and that of males to ________ years is a measure to tackle population growth.
To help control population growth, the legal marriageable age was raised to 18 years for females and 21 years for males.
Question 103 of 187
π CLASS XII
An ideal contraceptive should be user-friendly, easily available, effective and ________ with no or least side-effects.
One of the key characteristics of an ideal contraceptive is that it should be reversible, allowing the user to regain fertility when desired.
Question 104 of 187
π CLASS XII
Natural methods of contraception work on the principle of avoiding chances of ovum and sperms ________.
Natural contraceptive methods are based on the principle of preventing the meeting of sperm and ovum, thus avoiding fertilization.
Question 105 of 187
π CLASS XII
In periodic abstinence, couples avoid coitus from day 10 to 17 of the menstrual cycle, which is called the ________ period.
The period from day 10 to 17 of the menstrual cycle is known as the fertile period because ovulation is expected, and the chances of fertilization are very high.
Question 106 of 187
π CLASS XII
Withdrawal or ________ is a method where the male partner withdraws his penis from the vagina just before ejaculation.
Coitus interruptus, or the withdrawal method, is a natural contraceptive technique aimed at preventing insemination by withdrawal before ejaculation.
Question 107 of 187
π CLASS XII
Lactational amenorrhea is based on the fact that ________ does not occur during intense lactation.
The natural contraceptive method of lactational amenorrhea works because intense breastfeeding following parturition prevents ovulation and therefore the menstrual cycle.
Question 108 of 187
π CLASS XII
Lactational amenorrhea is reported to be an effective contraceptive method only up to a maximum period of ________ months following parturition.
The effectiveness of lactational amenorrhea as a contraceptive method is limited to a maximum of six months after childbirth, provided the mother is fully breastfeeding.
Question 109 of 187
π CLASS XII
Condoms are barriers made of thin ________ sheath used to cover the penis in males or the vagina and cervix in females.
Condoms are made of a thin rubber or latex sheath and function as a barrier to prevent ejaculated semen from entering the female reproductive tract.
Question 110 of 187
π CLASS XII
Use of condoms has increased due to its additional benefit of protecting the user from contracting STIs and ________.
Besides preventing pregnancy, condoms offer the significant additional benefit of protecting against sexually transmitted infections (STIs), including AIDS.