CBSE BoardEnglish MediumSTD 12 ScienceBiologySTD 12 - 12. ecosystem1 Mark
MCQ
The upright pyramid of number is absent in
A
pond
✓
forest
C
lake
D
grassland.
✓
Answer
Correct option: B.
forest
b (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.
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