A pyramid of numbers deals with the number of
Correct answer: C. Individuals in a trophic level
- A. Species in an area
- B. Individuals in a community
- C. Individuals in a trophic level
- D. Subspecies in a community.
Explanation
The pyramid of numbers is an ecological pyramid that employs the number of individuals per unit area at various trophic levels sequence-wise with producers at the base and various consumers at successively higher levels. The pyramid of numbers assumes different shapes in different ecosystems. The pyramid of numbers in a pond ecosystem is also upright. In a forest ecosystem, the pyramid of numbers is intermediate. Here, the number of primary consumers is more than producers as well as top consumers. In the parasitic food chain, the pyramid of numbers is inverted.
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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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