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ecology durkee

3-1,3-2,3-3,4-1,4-2

QuestionAnswer
What is Ecology? The scientific study of interactions among organisms and between organisms and their environmentm,or surroundings.
What is Biosphere? Part of Earth in which life exists including land, water, and air or atmosphere.
What are Species? A group of organisms so similar to each other that they can breed and produce fertile offspring.
What is Population? Groups of individuals that belong to the same species and live in the same area.
What is Community? Assemblages of different populations that live together in a defined area.
What is an Ecosystem? A collection of organisms that live in a particular place, together with their nonliving environment.
What is an Autotroph? Organisms that can capture energy from sunlight or chemicals and use it to produce its own food.
What is a heterotroph? Organisms that rely other organisms for their energy and food supply.
What is a Food Web? A network of complex interactions formed by the feeding relationships of various organisms in an ecosystem.
What is a Trophic Level? A step in the food chain or web.
What is biomass? The total ammount of living tissue within a given trophic level.
What is biogeochemical cycle? Process by which elements , chemical compounds and other forms of matter are passed from one organism to another and from one part of a biosphere to another.
What is a Limiting Nutrient? Single nutrient that either is scarce or cycles very slowly, limiting growthof organisms in an ecosystem.
What is weather? The day to day condition of the Earth's atmosphere at a particular time and place.
What is Climate? Average year to year conditions of a certain place.
What is Greenhouse Effect? The natural situation in which heat is retained by this layer of greenhouse gases.
What is a Biotic Factor? The biological influences on organisms within an ecosystem.
What is an Abiotic Factor? Physical, or nonliving, factors that shape ecosystems.
What is a Niche? The full range of physical and biological conditions in which an organism lives and the way in which the organism uses those conditions.
Created by: cdurkee
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