Question

Sigmoid growth curve is represented by

• A. $dN/dt=rN$
• B. $dN/dt=rN(1-N/K)$
• C. $Nt/No+B+I-D-E$
• D. $dN/dt=1-N/K$

Answer 1

Answer: (B)

Sigmoid growth curve is represented by $dN/dt=rN\left(\frac{1-N}{K}\right)$ Most populations do not show exponential increase because their environment prevents this.