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

Sign up for an account

Already have a Quizlet account? .

Create an account


change in a kind of organism over time; process by which modern organisms have descended from ancient organisms


group of similar organisms that can breed and produce fertile offspring


the trace or remains of an organism that lived long ago, most commonly preserved in sedimentary rock


The view that most of earth's geological features are the result of large-scale catastrophes such as floods, volcanic eruptions, etc.


a model of evolution in which gradual change over a long period of time leads to biological diversity


Theory by Lyell and Hutton. Geological processes occur now as they always have been and occur at a uniform rate. Derive the notion of deep time. Deposition of silt, strata, erosion.

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