$6$Read the following passage : Populations evolve to maximise their reproductive fitness in the habitat in which they live. Ecologists suggest, the life history of organisms have evolved in relations to the constraints imposed by the biotic and abiotic components of the habitat in which they live. This gets reflected in the population growth pattern of all organisms including humans. Study the population growth curves shown in the given graph and answer the questions that follow : 2024_CBSE_Biology_Set_Region4_Subset_Set2_Q30___p10_18

2024_CBSE_Biology_Set_Region4_Subset_Set2_Q30___p10_18

(a) Identify the growth curves 'A' and 'B'. (b) Mention what does the dotted line in the graph indicate and state its importance also.

OR

(b) Growth curve 'B' shows a different pattern from that of growth curve 'A'. Justify giving one reason. (c) (i) Which one of the two curves is more "realistic" and why ? (ii) Which one of the two curves is relevant in present days with respect to human population in our country and why ? 1 + 1

Biology · Organisms and Populations