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EP Ch 5

Ch 5 EP

Decomposer breakdown dead organisms
Producers energy directly from sun, plants, algae
Consumers energy indirectly from sun, eat other animals, carnivore
Chemosynthesis bacteria use hydrogen sulfide to make energy
Herbivores energy from producers
10% Law 10% of energy from one level is passed to the next,90% lost as heat and keeps the organism alive
Fossil Fuels carbon for living things millions of years ago, coal, oil, natural gas
Atmosphere 78% nitrogen
Pioneer species lichen, first organism to colonize an area
Fire causes trees to release seeds, clears deadwood, encourage new growth
Succession new species make environment less fit for old species
Primary succession when nothing has lived there before, soil would contain lichens, rocks, dust
Secondary succession growth of plants after forest fire
Carbon cycle
Humans increase carbon dioxide, carbon enters ecosystem through photosynthesis
Limestone large carbon reserve
Respiration equation, opposite of photosynthesis, oxygen is a reactant, produces energy, glucose and oxygen produce carbon dioxide, water, and energy
Photosynthesis sunlight made into sugar, equation
Energy can be stored in fat and sugar molecules,
Phosphorus effected by fertilizer
Nitrogen cycle bacteria change nitrogen into a usable form (nitrogen fixing bacteria), effected by fertilizer
Food Chain direct line of feeding
Food web many feeding relationships in an ecosystem
Sink where nutrients are stored
Legumes plants with nitrogen fixing bacteria
Climax community final stable community
Created by: evroman