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SLS Bio11 Ecology jm

TermDefinition
carrying capacity
cellular respiration the oxidation of organic compounds that occurs within cells, producing energy for cellular processes. it allows the cell to produce energy and "breath"
chemical equations a representation of a chemical reaction using symbols of elements to show the amount of a certain substance ex: H2O
climax community a community in which populations of plants or animals remain stable and exist in balance with each other and their environment
commensalism a relationships between two organisms where one organism benefits from the other without affecting it.
consumer organisms on an ecological food chain that get energy by consuming other organisms.
cyclic growth Cyclic population growth occurs when there is a low amount of population, food is very high, so the population explodes
decomposer organisms that break down dead and decaying things, by doing this, they carry out the natural process of decomposition.
density dependant factors any factor limiting the size of a population which effect is dependent on the number of organisms in the population.
, density-independent factors Any factor limiting the size of a population which effect is not dependent on the number of organisms in the population.
ecological succession the process in which the structure of a biological community evolves over time
energy flow the flow of energy through a biological food chain.
exponential growth When the resources are unlimited in the habitat, the population of an organism living in the habitat grows in an exponential or geometric fashion
logistic growth when the growth rate decreases as the population reaches carrying capacity.
mutualism two organisms benifits of each others relationship
parasitism when one organism benifits of the other (taking nutrients)
photosynthesis carbon dioxide, water, and certain inorganic salts are converted into carbohydrates 6CO2 + 6H2O ------> C6H12O6 + 6O2
pioneer species species which are the first to colonize in damaged ecosystems
population are a group of individuals belonging to the same species that live in the same region at the same time.
producer organisms that produce their own food and nutrients.
products anything produced by organelles in a cell.
pyramid of energy a graphical representation designed to show the biomass or bio productivity at each trophic level in a given ecosystem.
reactants A substance taking part in a chemical reaction.
steady state is stable over time, but no energy or work is required to maintain that condition.
symbiosis is when two organisms are in a symbiotic relationship because they can't survive without each other.
Created by: 100006992138083
 

 



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