An organism that causes disease
An organism that feeds on dead matter
An organism that feeds on a living host
An organism that requires oxygen
An organism that does not require oxygen
A state in which members of a population die as quickly as new members are born
Population growth that is unhindered because of the abundance of resources for an ever-increasing population
Population growth that is controlled by limited resources
A temporary union of two organisms for the purpose of DNA transfer
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
The transfer of a DNA segment from a nonfunctional donor cell to that of a functional recipient cell
The process in which infection by a virus results in DNA being transferred from one bacterium to another
The DNA and other essential parts of a bacterium coated with several hard layers
Organisms within the same species with markedly different traits
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