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Examples of human phenotypic variability: people with different levels of skin colors, a normal distribution of IQ scores, the tallest recorded man in history - Robert Wadlow - with his father. Human variability, or human variation, is the range of possible values for any characteristic, physical or mental, of human beings.
Eye color is an example of a (physical) phenotypic trait. A phenotypic trait, [1] [2] simply trait, or character state [3] [4] is a distinct variant of a phenotypic characteristic of an organism; it may be either inherited or determined environmentally, but typically occurs as a combination of the two. [5]
Human physical appearance is the outward phenotype or look of human beings. Image of a European female (left) and an East Asian male (right) human body seen from front (upper) and back (lower). Adult human bodies photographed whose naturally-occurring pubic, body, facial, but not head hair have been deliberately removed to show anatomy.
A proposed definition for both terms as the "physical totality of all traits of an organism or of one of its subsystems" was put forth by Mahner and Kary in 1997, who argue that although scientists tend to intuitively use these and related terms in a manner that does not impede research, the terms are not well defined and usage of the terms is ...
In De humana physiognomia (1586), della Porta used woodcuts of animals to illustrate human characteristics. Both della Porta and Browne adhered to the 'doctrine of signatures'—that is, the belief that the physical structures of nature such as a plant's roots, stem, and flower, were indicative keys (or 'signatures') to their medicinal potentials.
Comparative physiology – Study of the diversity of functional characteristics of organisms. Development of the human body – Process of human growth to maturity; Glossary of medicine; Human physical appearance – Look, outward phenotype; Medicine – Diagnosis, treatment, and prevention of illness; Organ system; Outline of human anatomy
In short, people who suffer from it develop itchy and painful hives when their skin comes into contact with water. So, they have to limit their exposure as much as possible. #4
The distribution of many physical traits resembles the distribution of genetic variation within and between human populations (American Association of Physical Anthropologists 1996; Keita and Kittles 1997). For example, ~90% of the variation in human head shapes occurs within continental groups, and ~10% separates groups, with a greater ...