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प्रश्न
Observe the schematic representation given above and answer the following questions:
- Identify A and B.
- Calculate the growth rate of bacteria in a curd sample, where 1 million bacteria increased to two million, within a period of one hour.
उत्तर
- B = Natality, A = Mortality
- Growth rate = `"No. of individuals added"/ "Total population"`
= `1/2`
= 0.5
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Assertion (A): Population of a region does not change.
Reason (R): Birth rate, death rate and migration affect the population of a region.
Assertion (A): Population of a region does not change.
Reasoning (R): Birth rate, death rate and migration affect the population of a region.
