Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

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

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 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


Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording