colourless crystalline compound. Any of several bases that are derivatives of purine; a colorless crystalline organic base containing nitrogen; the parent compound of various biologically important substances.

To open an essay to set the scene.

likely or prone to be affected by. conditionally upon. Citizen of an area or country. cause or force person or thing to undergo.

salt or ester of phosphoric acid. Salt of phosphoric acids.

Clearly different in nature from something else.

To hold something inside something else.

begin or be reckoned from particular point in time or space.

The way in which the parts of a system or object are arranged or organized, or a system arranged in this way. To plan, organize, or arrange the parts of something.

A path or way that you can walk.

having acquired much knowledge through study. To get knowledge or skills by study or experience.

expressive. what is meant by word, text, etc.. To have a particular intention or value.

assembled or made from whatever is available, and so unlikely to be of highest quality. mark or wound made by scratching. To rub your skin with your nails to stop an itch.

Any of various compounds consisting of a nucleoside combined with a phosphate group and forming the basic constituent of DNand RNA.

Careful plan or method for achieving a goal. Branch of military dealing with command.

(Of a person) well-known and highly respected. To make something clearly different from others.