Biology - Chesher's Science Room
Transcript of Biology - Chesher's Science Room
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Biology
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total weight of living material at each trophic level
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organism, such as fungus or bacteria, that breaks down and absorbs nutrients from dead organisms
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organism that consumes another organism, absorbing its tissue through the consumption
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organism that is consumed by another organism
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symbiotic relationship in which one organism benefits at the expense of another, usually another species
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organism that harbors a parasite
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symbiotic relationship in which one organism benefits and the other is neither harmed nor benefitted
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symbiotic relationship in which both organisms benefit
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growth that starts slow, increases sharply indefinitely
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growth that starts slow, increases sharply, slows, then tapers off to a specific level
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the number of organisms of one species that an environment can support indefinitely
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phenomenon that occurs when certain gases in the atmosphere trap infrared radiation
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group of organisms all of the same species, which interbreed and live in the same place at the same time
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pattern of any process or related processes which affect growth or change within a population
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process of analyzing an entire population based on a representative sample of that population
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represents the total available energy at each trophic level
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represents the quantity of organisms consumed at each trophic level by the level above it
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represents the total dry weight of living material available at each trophic level
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continuous movement of a chemical element or molecule on, above and below the surface of the Earth
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continuous movement of carbon on, above and below the surface of the Earth
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continuous movement of nitrogen on, above and below the surface of the Earth
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continuous movement of water on, above and below the surface of the Earth
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scientific study of interactions between organisms and their environments
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interactions among populations in a community
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orderly, natural changes and species replacements that take place in communities of an ecosystem over time
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endpoint stage of succession in which all species present reproduce in proportion to one another and no further change occurs
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role or position a species has in its environment
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place where an organism lives out its life
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collection of several interacting populations in a certain area at a certain time
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portion of Earth that supports life
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nonliving parts of an organism's environment
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all the living organisms that inhabit an environment
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organisms that use energy from the sun or energy stored in chemical compounds to manufacture their own nutrients
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organisms that cannot make their own food and must feed on other organisms for energy and nutrients
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heterotroph that feeds only on plants
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heterotroph that eats only other heterotrophs
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heterotroph that feeds on both plants and other heterotrophs
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heterotroph does not kill for food, but feeds on the remains of animals that have already died
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chemical that an organism needs in order to live and grow
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movement of conserved energy throughout an ecosystem
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movement of conserved matter throughout an ecosystem
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simple model that shows how matter and energy move through an ecosystem (single path)
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model that shows all possible feeding relationships at each trophic level in a community
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organism that represents a feeding step in the movement of energy and materials through an ecosystem