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Match List-I with List-II
Choose the correct answer from the options given below: |
(A)-(I), (B)-(II), (C)-(III), (D)-(IV) (A)-(IV), (B)-(III), (C)-(II), (D)-(I) (A)-(III), (B)-(IV), (C)-(I), (D)-(II) (A)-(II), (B)-(I), (C)-(IV), (D)-(III) |
(A)-(IV), (B)-(III), (C)-(II), (D)-(I) |
The correct answer is Option (2) → (A)-(IV), (B)-(III), (C)-(II), (D)-(I)
The density of a population in a given habitat during a given period, fluctuates due to changes in four basic processes,two of which (natality and immigration) contribute to an increase in population density and two (mortality and emigration) to a decrease. Natality refers to the number of births during a given period in the population that are added to the initial density. Immigration is the number of individuals of the same species that have come into the habitat from elsewhere during the time period under consideration. Natality and Immigration both increase population density. Mortality is the number of deaths in the population during a given period. Emigration is the number of individuals of the population who left the habitat and gone elsewhere during the time period under consideration. Mortality (death rate) and Emigration (departure of individuals) both decrease population density. |
