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Ecology

TermDefinition
Biomass Total amount of living tissue within a given trophic level
Ecology the branch of biology that deals with the relations of organisms to one another and to their physical surroundings
Energy Pyramid a triangular diagram that shows an ecosystem’s loss of energy, which results as energy passes through the ecosystem’s food chain
Trophic Levels steps in a food chain or energy pyramid
Energy Transformation A change from one form of energy to another
Food Web A community of organisms where there are several interrelated food chains
Food Chain A series of steps in which organisms transfer energy by eating and being eaten
Primary Consumer An organism that eats producers
Secondary Consumer An organism that eats primary consumers
Tertiary Consumer An organism that eats secondary consumers
What do the arrows show in a food web? flow of energy
Why is energy "lost" as you move up the energy pyramid? 90% of the energy is used by the organisms. It is released into the environment as heat
Where does all the energy originally come from in a food chain? the sun
About how much energy is passed on to the next level? 10% is passed on
Producer an organism that makes its own food
What is another term for producer? autotroph
What type of energy is released from the sun? radiant
What type of energy is stored in glucose? chemical
what is the energy transformation of photosynthesis? radiant energy from the sun is changed into stored chemical energy in glucose
What type of organisms are found in the first trophic level of an energy pyramid? producers
Where in an energy pyramid would you find the MOST available energy? at the bottom
Created by: mvanderb