... in the retina that is the area of clearest vision because the layers of the retina are spread aside, allowing light to fall directly on the cones. ... infectious agents. gastrointestinal Pertaining to the stomach and intestine. gene The basic unit of heredity and genetic information ... protected by a trademark genetic code The hereditary instructions contained in DNA, structurally, the arrangement of four chemicalsanbsp;...
|Title||:||Health: Man in a Changing Environment|
|Author||:||Benjamin A. Kogan|
|Publisher||:||Harcourt College Pub - 1974|