Latin term (habere = to carry) in biology for the external appearance of an organism with the totality of all essential and typical visible characteristics of a human being, animal or plant as well as their relations and proportions. In the case of the vine, these are the leaf, shoot, growth, wood, grape, berry, flowering time, time of budding, maturity and yield. In addition, resistance to diseases and pests is also used to determine the vine variety (see under vine enemies). These often significant characteristics usually allow a very precise determination of the family, genus or even species affiliation of a living being. The relevant science is called morphology. More precise information about ancestry can only be obtained by DNA analysis. A complete list of all grape variety-specific keywords can be found under grapevine.