First slide

Populations

Question

Exponential growth equation is

Easy

A

$\frac{d N}{d t} = (b - d) N$
B

$\frac{d N}{d t} = r N (\frac{K - N}{K})$
C

$\frac{d N}{d t} = r N (\frac{K - N}{N})$
D

$\frac{d N}{d t} = (\frac{b - d}{N})$

Solution

Exponential growth equation is $\frac{d N}{d t} = r N = (b - d) N$
where in a population of size N, the birth rates are represented as b and death rates as d, the increase or decrease in N during a unit time period t $(\frac{d N}{d t})$ will be dN/dt =(b-d)N.

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