3) Pyramid Models

What do pyramids model?

the distribution of energy and matter in an ecosystem

What models the distribution of energy and matter in an ecosystem?

pyramids

What are included in the ecological pyramids?

energy pyramids, biomass pyramids, pyramid of numbers

energy pyramids, biomass pyramids, and the pyramid of numbers are included in the what?

ecological pyramids

What does an energy pyramid show?

the comparison of energy among trophic levels

What shows the comparison of energy among trophic levels?

an energy pyramid

Between each tier of an energy pyramid. _

up to 90 percent of energy is lost into the atmosphere as heat

Up to 90 perecent of the energy is lost into the atmosphere as heat between _

each tier of an energy pyramid

Only 10 percent of the energy at each tier is_

transferred from one trophic level to the next

How much energy at each tier is transferred from one trophic level to the next?

10 percent

What is biomass?

A measure of the total dry mass of organisms in a given area

What is a measure of the total dry mass of organisms in a given area?

biomass

What does a pyramid of numbers show?

the amount of individual organisms at each trophic level in an ecosystem

What shows the amount of individual organisms at each trophic level in an ecosystem

a pyramid of numbers

A vast number of producers are required to support

a few top level consumers

What are required to support even a few top level consumers?

a vast number of producers