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Biology · 2024 · 2 marks
CBSE 2024 · Region 5 · Set 1 · Q19
Observe the population growth curve and answer the questions given below: (a) State the conditions under which growth curve ‘A’ and growth curve ‘B’…
Observe the population growth curve and answer the questions given below :
(a)
State the conditions under which growth curve ‘A’ and growth curve ‘B’ plotted in the graph are possible.
(b)
Mention what does ‘K’ in the graph represent.
Marking-scheme solution
(a)
Growth curve ‘A’ – unlimited resources (food and space) or limited competition or in absence of checks or in absence of environmental resistance
Growth curve ‘B’ – limited resources or more competition or in presence of checks or in presence of environmental resistance
(b)
‘K’ is the carrying capacity or maximum number of individuals of a population a given habitat can accommodate (beyond which no further growth is possible).
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CBSE Class 12 Biology past-paper question from the 2024 board exam, with the answer as CBSE’s own marking scheme gives it. Where our answers come from.