AP BIOLOGY

Detailed explanation-1: -The biomass is the mass of living biological organisms in a given area or ecosystem at a given time. Biomass can refer to species biomass, which is the mass of one or more species, or to community biomass, which is the mass of all species in the community. It can include microorganisms, plants or animals.

Detailed explanation-2: -Final answer: The mass of living material at a trophic level at a particular time is called standing crop.

Detailed explanation-3: -A biomass is the total mass of living and previously-living organisms within a trophic level; ecosystems have characteristic amounts of biomass at each trophic level.

Detailed explanation-4: -Biomass in an ecosystem is the mass or weight of living tissue, which is commonly subdivided into five fundamental trophic levels forming the basic food chain: 1. producers, which are green photosynthesizing plants 2. herbivores, which eat producers 3. predators, which eat herbivores 4.