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STD 12 - 11. organisms and populations — Biology STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 11. organisms and populations1 Mark
MCQ
The formula for exponential population growthis
  • ✓
    $dN/dt = rN$
  • B
    $dt/dN = rN$
  • C
    $dN/rN = dt$
  • D
    $rN/dN = dt.$
✓

Answer

Correct option: A.
$dN/dt = rN$
a
(a) : Nearly all populations will tend to grow exponentially as long as there are resources available. The formula for exponential population growth is $dN/ dt = rN$. In this equation $d$ is the rate of change, $N$ is the number of existing individuals, $r$ is the intrinsic growth rate, $t$ is time, and $dN/dt$ is the rate of change in population size.

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