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ecology tenebaum

ecology terms

QuestionAnswer
Ecology the scientific study of interactions among organisms and between organisms and their enviornment
Biosphere contains the combined portions of the planet in which all of life exists, including land, water and air or atmosphere
Species a group of organisms so similar to eachother that they can breed and produce fertile offspring
Population groups of individuals that belong to the same species and live in the same area
Community assemblages of different populations that live together in a defined area
Ecosystem a collection of all the organisms that live in a particular place, together with their nonliving or physical enviornment.
Biome a group of ecosystems that have the same climate and similar dominant communities
Autotroph organisms that can capture energy from sunlight or chemicals and use that energy to produce food
Heterotroph organisms that rely on other organisms for their energy and food supply
food web when the feeding relationshops among the various organisms in a ecosystem form a network of complex interactions
trophic level every step in a food chain/web
biomass the total amount of living tissue within a given trophic level
Biogeochemical cycles elements, chemical compounds, and other forms of matter are passed from one organism to another and from one part of the biosphere to another
Limiting nutrient when an ecosystem is limited by a single nutrient that is scarce or sycles very slowly
Weather the day to day condition of Earth's atmosphere at a particular time and place
Climate the average year after year conditions of temperature and precipitation in a particular region
Greenhouse effect the natural situations in which hear is retained by this layer of greenhouse gases
biotic factor the biological influences on organisms within an ecosystem
abiotic factor physical or nonliving factors that shape ecosystems
Created by: mtenebaum
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