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Ecology Silverman

ecology flashcards

QuestionAnswer
ecology the scientific study of interactions among organisms and between organisms and their environment, or surroundings
biosphere all portions of the planet where life exists, including land, water, and air.
species a group of organisms so similar to one another that they can breed and produce offspring.
populations groups of individuals that belong to the same species and live in the same area.
communities assemblages of different populations that live together in a defined area
ecosystem a collection of all organisms that live in a particular place together with their non-living or physical, environment
biome a group of ecosystems that have the same climate and similar dominant communities
autotrophs use energy from their environment to fuel themselves
producers organisms that make their own food and produce tissue
food web links all of the food chains in an ecosystem together
trohpic level each step in a food chain or web
biomass the total amount of living tissue within an given trophic level
biogeochemical cycle connects biological, geological, and chemical aspects throughout a biosphere
limiting nutrient when an ecosystem is limited by a single nutrient that is scarce or cycles slowly.
weather the day to day condition of Earth's atmosphereat a particular time and place
climate the average year after year conditions of temperature and precipitation
greenhouse effect the natural situation in which heat is retained in the atmosphere
biotic factor the biological influences on organisms within an ecosystem
abiotic factor non-living factors like temperature and wind that shape ecosystems
niche the full range of physical and biological conditions in which an organism lives and the way in which the organism uses these conditions
logistic growth when the growth of a population stops or slows following a period of exponential growth
carrying capacity the maximum number of species that can live
Created by: nachoskibre
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