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amin1

biology

QuestionAnswer
3-1 ecology scientific study of interactions among organisms and between organisms and their environment
biosphere part of earth in which life exists including land water and air or atmosphere
species group of similar organisms that can breed and produce fertile offspring
population group of inviduals of the same species that live in the same area
community assemblage of diffrent population that live together in a defined area
ecosystem a collection of all the organisms that live in a particular place, togather with their nonliving, or physical, environment.
3-2 autotroph organism that can capture energy from sunlight or chemicals and use it to produce its own food from inorganic compounds; also called a producer.
heterotroph organisms that rely on othe organisms for their energy and food supply.
food web when the feeding relationships among the various organisms in an ecosystem form a network of complex interactions, ecologists dscribe these relationships as.
trophic level each step in a food chain or food web
biomass the total amount of living tissue within a given trophic level
3-3 biogeochemical cycle elementsm 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 what is scarce or cycles very slowly this substance is called..
4-1 weather is day to day condition of earths atmosphere at a particular time and place
climate on the other hand refers to the average, year after year conditions of temperature and precipitation in a particular region
green house effect the natural situation in which heat is rtained by this layer of greenhouse gases is what its called.
4-2 biotic factor the biologiccal influences on organisms within an ecosystem.
abiotic factor physical or nonliving factors that shape ecosystem
niche is the full range of physical and biological conditions in which an organismlives and the way in which the organism uses those conditions
Created by: khiar_narengy
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