Diachronic study
a study done over the course of time. For example, a longitudinal study of children with down syndrome (trisomy 21) might involve the study of 100 children with this condition from birth to 10 years of age. Also called a longitudinal study. The opposite of a synchronic (cross-sectional) study.
This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..
Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..
A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..
Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..