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

Sign up for an account

Already have a Quizlet account? .

Create an account


In evolutionary biology, a particular structure, physiological process, or behavior that makes an organism better able to survive and reproduce. Also, the evolutionary process that leads to the development or persistence of such a trait.


Prokaryote in the Domain Bacteria. The chromosomes of bacteria are not contained in nuclear envelopes.

Comparative Method

An approach to studying evolution and ecology in which hypotheses are tested by measuring the distribution of states among a large number of species.


The largest unit in the current taxonomic nomenclature. Members of the three domains (Bacteria, Archaea, and Eukarya) are believed to have been evolving independently of each other for at least a billion years

Eukaryotic Cells

contains genetic material inside a nucleus. Includes all life other than the viruses, archaea, and bacteria


A group of related, similar species.


The maintenance of a steady state, such as a constant temperature or a stable social structure, by means of physiological or behavioral feedback responses.

Hypothesis-prediction approach

A method of science in which hypotheses are generated, predictions are made from them, and experiments and observations are performed to test the predictions.


The sum total of the chemical reactions that occur in an organism, or some subset of that total.

Natural Selection

The differential contribution of offspring to the next generation by various genetic types belonging to the same population. The mechanism of evolution proposed by Charles Darwin.


Metabolic processes, carried out by green plants, by which visible light is trapped and the energy used to synthesize compounds such as ATP and glucose.

Prokaryotic Cells

genetic material is not contained within a nucleus: the bacteria and archaea. Considered an earlier stage in the evolution of life than the eukaryotes.


The basic lower unit of classification, consisting of a population or series of populations of closely related and similar organisms.


The scientific study of living things.

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