Study the population growth curves in the graph given below and answer the questions which follow :
(i) Identify the growth curves ‘a’ and ‘b’.
(ii) Which one. of them is considered a more realistic one and why ?
If `(dN)/9dt)=rN((K-N)/K)` is the equation of the logistic growth curve, what does K stand for ?
(iv) What is symbolised by N ?