A) blood web
B) pyramid of energy
C) pyramid of mass
D) Eltonian pyramid
Correct Answer: A
Solution :
Food chain in natural conditions never operate as isolated sequences, but are interconnected with each other forming some sort of interlocking pattern which is referred to as food web. The complexity of any food web depends upon the diversity of organisms in the system. The concept of ecological pyramid was developed by Charles Ekon (1927). The trophic structure and function at successive trophic level is called ecological pyramids (Eitonian pyramids). Pyramid of energy gives the best picture of overall nature of the ecosystem. Pyramid of energy is a picture of the rate of passage of food mass through the food chain.
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