Gujarati
Hindi
11.Organisms and Populations
medium

Given population growth curve represents the logistic growth curve. In this curve find out what does $A, B$ and $C$ indicates

A

$A-$Log phase, $B-$Log phase, $C-$Stationary phase

B

$A-$Log phase, $B-$Lag phase, $C-$Stationary phase

C

$A-$Stationary phase, $B-$Log phase, $C-$Lag phase

D

$A-$Stationary phase, $B-$Lag phase, $C-$Log phase

Solution

A population growing in a habitat with limited resources shows three phases.

$(i)$ Lag phase It is the initial phase in which a population adapt themself according to the environment and starts to increase their number

$(ii)$ Log phase It is the second phase in which a population use its resources maximally and increases their number exponentially. Number of birth $>>$ Number of death

$(iii)$ Stationary phase It is the $3^{\text {rd }}$ phase in which the population reached the carrying capacity level and population get stationary position. No of death $=$ No of death

Standard 12
Biology

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