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12.Ecosystem
medium
શેમાં સીધા પિરામિડ હોતા નથી?
A
તળાવ
B
જંગલ
C
સરોવર
D
ઘાસનાં મેદાન
(AIPMT-2012)
Solution
(b) :In forests, a single tree can support a large number of birds thus base showing producers in a pyramid of number will be narrower than the next slab showing primary consumers. Hence an upright pyramid of number is not formed in a forest ecosystem.
Standard 12
Biology