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a) Explain "death rate" in a population ...

a) Explain "death rate" in a population by taking a suitable example.
b) Write the other two characteristics which only a population shows but an individual cannot.

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a) Death rate- It is expressed as the number of deaths to given population in a period of time e.g. if 8 fruitflies in a laboratory population of 40 due during a week, the death rate is `8/40=0.2` per week.
b) N//A
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XII BOARDS PREVIOUS YEAR-XII BOARDS-Section C
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