Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006920
Hygiene
The science dealing with the establishment and maintenance of health in the individual and the group. It includes the conditions and practices conducive to health. (Webster, 3d ed)
D012574
Schools
Educational institutions.
Primary Schools,Schools, Secondary,Secondary Schools,Primary School,School,School, Primary,School, Secondary,Schools, Primary,Secondary School