| occurring across a membrane, as an electric potential or the transport of ions or gases |
| the science dealing with the description, identification, naming, and classification of organisms |
imitation
in psychology, the reproduction or performance of an act that is stimulated by the perception of a similar act by another animal or person. Essentially, it involves a model to which the attention and response of the imitator are directed
Learn more about imitation with a free trial on Britannica.com.