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14 Cards in this Set

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an organism that causes disease
pathogen
an organism that feeds on dead matter
saprophyte
an organism that feeds on a living host
parasite
an organism that requires oxygen
aerobic organism
an organism that does not require oxygen
anaerobic organism
a state in which members of a population die as quickly as new members are born
steady state
population growth that is unhindered because of the abundance of resources for an ever-increasing population
exponential growth
population growth that is controlled by limited resources
logistic growth
a temporary untion of two organisms for the purpose of DNA transfer
conjugation
a small, circular section of extra DNA that confers one or more traits to a bacterium and can be reproduced separately from the main bacterial genetic code
plasmid
the transfer of a DNA segment from a nonfunctional donor cell to that of a functional recipient cell
transformation
the process in which infection by a virus results in DNA being transferred from one bacterium to another
transduction
the DNA and other essential parts of a bacterium coated with several hard layers
endospore
organisms from the same species that have markedly different traits
strains