Weather front areas of precipitation help determine the frontal type and location. There are two different meanings used within meteorology to describe weather around a frontal zone. The term "anafront" describes boundaries which show instability, meaning air rises rapidly along and over the boundary to cause significant weather changes. A "katafront" is weaker, bringing smaller changes in temperature and moisture, as well as limited rainfall. A cold front is located at the leading edge of the temperature drop off, which in an isotherm analysis shows up as the leading edge of the isotherm gradient, and it normally lies within a sharp surface
Methods used to study memory works. Intraspecies comparisons are key. Rats for example display extremely complex behaviours and most of the structures in their brain parallel those in humans. Due to their relatively simple organization, slugs can be useful for studying how neurons interconnect to produce observable behaviour. Fruit flies are useful for studying gene-behaviour interactions because many generations with genetic alterations can be quickly bred in the laboratory. Methods used to study memory The study of memory incorporates research methodologies from neuropsychology, human development and animal testing using a wide range of species. The complex phenomenon of memory is explored by combining evidence from