AP BIOLOGY

Detailed explanation-1: -A biomass pyramid is the representation of total living biomass or organic matter present at different trophic levels in an ecosystem. Biomass is calculated as the mass of living organisms present at each trophic level in a given sample size. It can be represented as dry weight in grams or calories per unit area.

Detailed explanation-2: -A biomass pyramid compares the biomass of different trophic levels within an ecosystem. This pyramid model shows the mass of producers needed to support primary consumers, the mass of primary consumers needed to support secondary consumers, and so on.

Detailed explanation-3: -A pyramid of biomass shows the total biomass of the organisms involved at each trophic level of an ecosystem. These pyramids are not necessarily upright. There can be lower amounts of biomass at the bottom of the pyramid if the rate of primary production per unit biomass is high.

Detailed explanation-4: -Pyramid of biomass is an ecological pyramid that represents the biomass of different trophic levels within an ecosystem. Biomass is the total amount of dry mass of organisms in a given area. It compares the biomass at each level. Similar to a pyramid of energy, primary producers occupy the highest biomass.

Detailed explanation-5: -Trophic Levels and Biomass Organisms tend to be larger in size at higher trophic levels, but their smaller numbers result in less biomass. Biomass is the total mass of organisms at a trophic level. The decrease in biomass from lower to higher levels is also represented by Figure above.