Measures to Control Over Population || Reproductive Growth Rate || Fertility (Natality) || Mortality || Family Planning-Objective || contraceptive methods

We must adopt drastic measures to control population growth.

The phase of the population growth when the natality is equal to mortality is called as :

Read the following passage and answer any four questions given below: Lactational amenorrhea, is also called as postpartum infertility. It occurs when a women is not menstruating and fully breast feeding. It is a temporary family planning method. It is a contraceptive method where the mother is informed and supported in how to use breast feeding for contraception. As breast feeding delays the return of a mother's ovulation (when the woman's ovary releases an egg) and may make her infertile for six months or more. A procedure misused for female foeticide is :

Read the following passage and answer any four questions given below: Lactational amenorrhea, is also called as postpartum infertility. It occurs when a women is not menstruating and fully breast feeding. It is a temporary family planning method. It is a contraceptive method where the mother is informed and supported in how to use breast feeding for contraception. As breast feeding delays the return of a mother's ovulation (when the woman's ovary releases an egg) and may make her infertile for six months or more. Lactational amenorrhea is due to action of which hormone :

Which method of birth control is also termed as natural family planning ?

I. Population evolve to maximise their reproductive fitness, also called Darwinian fitness (higher 'r' value) in the habitat in which they live II. The population growth rate r is inversely related to generation time III. The housefly , which has a short life span and produces a large number of eggs, could be considered as a K selected species IV. under a particular set of selection pressures, organisms evolve towards the most efficient reproductive strategies V. life history traits of organisms have evolved in relation to the constrains imposed by biotic and abitioc factors in their habitat. Select the combination of correction statements

[A]: Oral contraceptive pills are meant for family planning purpose. [R]: Oral contraceptive pills inhibit fertilization

Which of the following statements are correct? I. Mortality is the rate of loss of individuals per unit time due to death. II. Population dispersion affects the size of population. III. Age distribution influences both natality and mortality of the population. IV. Realised natality is the actual death rate found under existing conditions.