Question

Sigmoid growth curve occurs where growth pattern is

• A. Logistic
• B. Exponential
• C. Accretionary
• D. Geometric

Answer 1

The correct option is A Logistic

Logistic growth model:- Sigmoid growth curve occurs where growth pattern is logistic. Unconstrained natural growth is exponential growth. A biological population with food, space to grow, and no threat from predators, tends to grow at rate proportional to population.

$\frac{dP}{dt}=rp$

where p$=$population function of time t

r$=$ proportionality constant.