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Ecosystem
ommunity of interdependent organisms and the physical environment they interact with
community
group of populations living and interacting with each other in a common habitat.
What do producers do
convert inorganic compounds into food
chemosynthesis
he process by which food is made by bacteria or other living things using chemicals as the energy source
Decomposers
absorb and metabolize waste and dead matter on a molecular level then release it as inorganic chemicals
Pyramid of numbers
pyramid of biomass
graphical representation of the amount of biomass at each trophic level
How is biomass mesaured
g m–2 (grams per meter squared)
Pyramid of Biomass
How is biomass measures?
Dry weight
What are some disadvantages of biomass of numbers?
Unethical, seasonal variation, different caloric values
pyramid of productivity
turnover of biomass at each trophic level
What are the units for products of productivity
J m-2 yr-1.
pyramid of productivity
Pyramids of productivity are always ____ shaped
pyramid
What are some disadvantages of pyramids of productivity?
difficult
