Question

Why are ecological pyramids shaped as pyramids? (1 point)because there is a large decrease in the amount of energy or biomass as you move from one trophic level up to the next?
because the movement of energy through the biosphere follows a path similar in shape to a pyramid
because decomposers form a wide base of support at the bottom of a food web similar to the base of a pyramid
because a pyramid represents a stable building form that is similar to the structure of a stable ecosystem

Answer 1

Ecological pyramids can also be called trophic pyramids or energy pyramids. Pyramids of numbers can be either upright or inverted, depending on the ecosystem. A typical grassland during the summer has an upright shape since it has a base of many plants, with the numbers of organisms decreasing at each trophic level .

Answer 2

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Answer 3

so the answe is a.because the movement of energy through the biosphere follows a path similar in shape to a pyramid

Answer 4

Increasing trophic levels results in ~90% loss of energy. Example: If I eat an apple, I only capture ~10% of the total energy that is in the apple.

Answer 5

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Answer 6

so a is wrong