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(a) Compare, giving reasons, the J-shaped and S-shaped models of population growth of a species.

(b) Explain ‘‘fitness of a species’’ as mentioned by Darwin.

 

 

 

 
 
 
 
 

Answers (1)

(a) 

J-shaped growth curve S-shaped growth curve
Resources are unlimited Resources are limited.
Growth is exponential. Logistic growth.

Growth equation :

\frac{dN}{dT}=Rn

Growth equation:

\frac{dN}{dT}=rN\left ( K-\frac{N}{K} \right )

(b) When resources are limited, competition occurs between individuals, fittest will survive who reproduce to leave more progeny.

Posted by

Priyanka Kumari

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