AP BIOLOGY

Detailed explanation-1: -An ecological pyramid is a graphical representation showing the relationship between different organisms in an ecosystem. It shows the flow of energy at different trophic levels in an ecosystem.

Detailed explanation-2: -Ecological pyramids show the relative amounts of various parameters (such as number of organisms, energy, and biomass) across trophic levels. Ecological pyramids can also be called trophic pyramids or energy pyramids.

Detailed explanation-3: -A pyramid of energy shows how much energy is retained in the form of new biomass at each trophic level, while a pyramid of biomass shows how much biomass (the amount of living or organic matter present in an organism) is present in the organisms.

Detailed explanation-4: -Trophic levels can be represented by numbers, starting at level 1 with plants. Further trophic levels are numbered subsequently according to how far the organism is along the food chain.

Detailed explanation-5: -There are three ways we can represent the trophic levels in an ecological pyramid: the amount of organisms (number), the mass of all the organisms in each level (biomass), or the amount of energy contained in each level.