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Biology · 2022 · 3 marks
CBSE 2022 · Region 1 · Set 2 · Q7
(a) What does the equation dN / dt = rN express in terms of population growth? (b) Write the significance of 'r' in a population survey.
(a)
What does the equation $\displaystyle \mathrm{dN} / \mathrm{dt}=\mathrm{rN}$ express in terms of population growth ?
(b)
Write the significance of 'r' in a population survey.
Marking-scheme solution
(a) It indicates exponential / geometric growth
(b) Assesses impact of biotic and abiotic factors on population growth, indicates intrinsic rate of natural increase
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