First slide

Populations

Question

Which statement is related to S-shaped population curve?

Moderate

A

Environmental resistance suddenly become ineffective
B

Exponential phase is followed by decline phase
C

Mass mortality and population crash occurs
D

Resources available to such a population is unlimited

Solution

A population growing in a habitat with limited resources exhibits logistic growth curve (S-shaped). Exponential (acceleration) is followed by deceleration phase in it.
Population which exhibits J-shaped growth curve has following features;
unlimited resources
high mortality and population crash

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