(a) (i) Describe the Species-Area relationship as observed by Alexander von Humboldt, for a wide variety of taxa in nature.
(ii) Draw the graph showing Species-Area relationship for $S=CA^Z$. What is the significance of 'Z' in Species-Area relationship?
OR
(b) (i) Describe the logistic population growth curve with the help of a suitable graphical representation.
(ii) Write the equation of Verhulst-Pearl logistic growth curve and explain what 'K' and 'r' suggest in the given equation.