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Ecology
Option G ecology and conservartion
10
Biology
12th Grade
11/14/2010

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Term
Biomagnification
Definition
the process by which chemical substances become more concentrated at each trophic level
Term
Community
Definition
a group of populations of organisms living and interacting with each other in a habitat
Term
Ecology
Definition
the study of relationships between living organisms and their environment - a community and its abiotic environment
Term
Ecosystem
Definition
a natural unit of biotic and abiotic components
Term
Habitat
Definition
the locality or surroundings in which an organism normally lives or the location of a living organism
Term
Population
Definition
a group of organisms of the same species which live in the same habitat at the same time
Term
Gross productivity
Definition
the total amount of organic matter produced
Term
Net productivity
Definition
the organic mtter of organisms less the amount needed to fuel respiration
Term
Species
Definition
a group of individuals of common ancestry that closely resemble each other and that are normally capable of interbreeding to produce fertile offspring
Term
Trophic level
Definition
a level in a food chain defined by the method of obtaining food and in which all organisms are the same number of energy transfers from the original source of energy (photosynthesis)
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