Group of plants (or animals) that are similar in some features but that do not necessarily form a phyletic group, especially an unnatural, or polyphyletic, group;
A set of organisms that have reached a similar stage in a recognisably progressive evolutionary trend.
To classify foods into different categories based on their quality characteristics or attributes, such as:
- Grade A (Fancy) — Excellent high-quality foods, practically uniform in size and very symmetrical, practically free of any defects, uniform in color, excellent in respect to texture and color.
- Grade B (Choice term for fruit and Extra Standard term for vegetables) — High-quality foods, reasonably uniform in size, good color texture, and reasonably free from defects.
- Grade C (Standard Quality) — Fairly good to good quality foods, fairly uniform in size, color and texture. Fairly free from defects.
- Grade D (Sub-Standard Quality) — Products which fail to meet the requirements of Grade C level of quality or the Minimum Standard of Quality as designated by the Food and Drug Administration.
A group of plants that do not form a monophyletic group, but branch off the main lineage sequentially and independently.
In education, levels of instruction corresponding roughly to age levels (such as kindergarten, age five; grade 1, age six; grade 2, age seven), with an established curriculum to be covered during a particular school year; also a mark (such as a number or letter) given by a teacher to indicate the student’s level of performance on a piece of work or in the course as a whole. If number grades are used (as is common in high schools), the passing grades usually range from 100 to 70 or 65, with lower numbers indicating failing work.