This is a very useful site for an instructor hoping to implement the use of peer review in any subject. Melanie Dawson of the University of Richmond's Writing Center has prepared a Peer Editing Guide (more info) .
morphology. n. 1. (Biology) the branch of biology concerned with the form and structure of organisms. 2. (Linguistics) the form and structure of words in a language, esp the consistent patterns of inflection, combination, derivation and change, etc, that may be observed and classified. 3. the form and structure of anything.
Root and Stem Morphology: a study of the appearance of the roots and stems of plants. The ability of plants to grow and produce depends inescapably on the soil, from which their roots absorb the water needed for photosynthesis, as well as the mineral elements required for growth and cell functions.