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ecologyreed

bio

QuestionAnswer
Ecology scientific study of interactions among organisms and their environment
biosphere part of earth which life exists including land water and air or atmosphere
species group of similar organisms that can be bread and produce fertile offspring
population groups of individuals that belong to the same species that live in the same area
community assemblage of different populations that live together in a defined area
ecosystem collection of all the organisms that live in a paticular place
autotroph plants, some algae and certain bacteria that can capture energy fron sunlight or chemicale and use thet energy to produce food
heterotroph organisms that rely on other organisms for their energy and food supply
food web links all the food chains in the ecosystem together
trophic level each step in a food chain or a food web
biomass the total amount of living tissue within a given trophic level
biogeochemical cycle connect biological, geological, and chemical aspects of the biosphere
limiting nutrient hen an ecosystem is limited by a single nutrient that is scarce or cycles very slowly
weather the day to day condition of earths atmosphere at a particular time and place
climate the average year to year conditions of temperature and precipitation in a particular region
green house affect the natural situation in which heat is retained by this layer of greenhouse gasses
biotic factor the biological influences on organisms within an ecosystem
abiotic factor phisical or nonliving factors that shape acosystems
niche the full range of phisical and biological conditions in which an organism lives and the way in which an organism uses these conditions
logistic growth the growth of a population slows or stops
carrying capacity largest numbers of individuals of a population that a given environment can support
demography the scientific study of human populations
demographic transition a dramatic vhange in birth and death rates
green revolution modern agriculture techniques that were introduced
Created by: reedosterberg2
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