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SLS bio11 Ecology CW

TermDefinition
carrying capacity Largest number of individuals of a population that a environment can support
cellular respiration Process that releases energy by breaking down glucose and other food molecules in the presence of oxygen
chemical equation A representation of a chemical reaction that uses symbols to show the relationship between the reactants and the products
climax community A stable, mature community that undergoes little or no change in species over time
commensalism A relationship between two organisms in which one organism benefits and the other is unaffected
consumer An organism that eats other organisms
cyclic growth growth that happens in a repeated cycle over a period of time
decomposer An organism that breaks down wastes and dead organisms
density-dependent factors Limiting factors (such as competition, predation, parasitism, and disease) that are affected by the number of individuals in a given area
density-independent factors Any factor limiting the size of a population whose effect is not dependent on the number of individuals in the population
ecological succession Gradual change in living communities that follows a disturbance
energy flow Energy moves from the eaten to the eater.
exponential growth Growth pattern in which the individuals in a population reproduce at a constant rate
logistic growth Growth pattern in which a population's growth rate slows or stops following a period of exponential growth
mutualism A relationship between two species in which both species benefit
parasitism A relationship between two organisms of different species where one benefits and the other is harmed
photosynthesis Plants use the sun's energy to convert water and carbon dioxide into sugars and oxygen
pioneer species First species to populate an area during primary succession
population populations are groups of individuals belonging to the same species that live in the same region at the same time
producer An organism that can make its own food.
product Ending materials from a chemical reaction.
pyramid of energy Total amount of incoming energy at each level in an ecosystem. The area at the bottom represents the greatest amount of energy in an ecosystem.
reactants A starting material in a chemical reaction
steady state A state in which members of a population die as quickly as new members are born
symbiosis cooperation; mutual helpfulness
Created by: colinwong
 

 



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