| Many biologically important molecules are destroyed by exposure to x-radiation and can only be investigated by a rapid exposure method. |
| Undesirable vegetation in a pond can be controlled mechanically, biologically, or chemically. |
| Hodgkin used X-ray crystallography to study the structure of biologically interesting molecules. |
| A method for preparing an orally administrable biologically active agent is also provided as are oral delivery compositions. |
| Cholesterol is biologically important as a constituent of the plasma membranes of many animal cells. |
| Declared biologically dead in 1957, the Thames is now awash with wildlife, ecologists say. |
