Pyramid Models Flashcards
An energy pyramid shows?
The distribution of energy among trophic levels.
Energy pyramids compare:
Energy used by producers and other organisms on thropic levels.
Between each tier of an energy pyramid, what happens?
Up to 90 percent of the energy is lost into the atmosphere as heat.
What percent of the energy at each tier that is transferred from one trophic level to the next?
Only 10 percent of the energy.
Pyramid models can also illustrate?
An ecosystem’s biomass and distribution of organisms.
Biomass is a measure of?
The total dry mass of organisms in a given area.
A pyramid of numbers shows?
The numbers of individual organisms at each trophic level in an ecosystem.
A vast number of producers are required to:
Support even a few top level consumers.
Pyramids model what?
The distribution of energy and matter in an ecosystem.
