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17 Cards in this Set

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Biosphere
part of earth in which life exists including land,water,and air of atmosphere
ecosystem
collection of organisms that live in a paricular place, together with their nonliving environment
biome
group of ecosystems that have the same climate and dominate communities
species
group of similar organisms that can breed and produce fertile offspring
population
group of individuals of the same species that occupy the same area
producer
organism that can capture food from inorganic compounds a.k.a. autotropoh
consumer
organism that relys on other organisms for its energy and food supply
decomposer
organism that breaks down and obtains energy from dead organic matter
community
assemblage of different populations that live together in a defined area
autotroph
organism that breaks down and obtains energy from sunlight or chemicals and use it to produce its own food from in organic compounds
photosynthesis
process by which plants and same other organisms use lught energy to comvert water and carbon dioxide and high energy carbs succh as sugar and starches
heterotroph
organisms that obtain energy from the food it consumes; also called a consumer
food chain
series of steps in an ecosystem in which organisms transfer energy bby eating and being eaten
food web
network of complex interactioins formed by the feeding relationships amound the various organisms in an ecosystem
trophic level
step in food chair/web
ecological pyramid
diagram that shows the relative amounts of energy or within each trophic level or food chain or food web
biomass
total amount of living tissue withing a given trophic level