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10 Cards in this Set

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  • Back
BIOMASS
A measure of the mass of organisms within a region divided by the area of that region
ECOLOGICAL PYRAMID
A diagram that shows the BIOMASS of organisms at each trophic level
ECOLOGY
The study of relationships among organisms in ECOSYSTEMS
ECOSYSTEM
An association of living organisms & their physical environment
GREENHOUSE EFFECT
The process by which certain gasses (principally water, carbon dioxide, and methane) trap heat that would otherwise escape the earth & radiate into space
PRIMARY CONSUMER
An organism that eats producers
SECONDARY CONSUMER

TERTIARY CONSUMER
An organism that eats PRIMARY CONSUMERS --
An organism that eats SECONDARY CONSUMERS
SYMBIOSIS
Two or more organisms of different species living together so that each benefits from the other
TRANSPIRATION
Evaporation of water from the leaves of a plant
WATERSHED
An ECOSYSTEM where all water runoff drains into a single river or stream