Match List I with List II
| List I | List II |
|---|---|
| (A) Natality | (I) Number of individuals coming into the habitat from elsewhere |
| (B) Mortality | (II) Number of births in the population |
| (C) Immigration | (III) Number of individuals leaving the habitat |
| (D) Emigration | (IV) Number of deaths in the population |
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → (A)-(II), (B) - (IV), (C) - (I), (D) - (III)
(A) Natality — this matches (II) Number of births in the population. Births add to the population density.
(B) Mortality — this matches (IV) Number of deaths in the population. Deaths reduce the density.
(C) Immigration — this matches (I) Number of individuals coming into the habitat from elsewhere. Newcomers of the same species increase the density.
(D) Emigration — this matches (III) Number of individuals leaving the habitat. Individuals that go away decrease the density.
NCERT Extract:
Population Growth – “… (i) Natality refers to the number of births during a given period in the population that are added to the initial density.
(ii) Mortality is the number of deaths in the population during a given period.
(iii) Immigration is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration.
(iv) Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration.”