The upright pyramid of numbers is absent in a
Correct answer: B. forest
- A. pond
- B. forest
- C. lake
- D. grassland.
Explanation
In forests, a single tree can support a large number of birds thus a base showing producers in a pyramid of numbers will be narrower than the next slab showing primary consumers. Hence, an upright pyramid of numbers is not formed in a forest ecosystem.
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About Man and His Environment
Ecosystems include biotic and abiotic components, food chains and webs, energy flow, nutrient cycles, populations and ecological relationships. Pollution and conservation cover air, water, soil and noise pollution, their effects on organisms, biodiversity loss, protected areas, sustainable resource use and methods for reducing environmental damage.
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