Inductees The Rock and Roll Hall of Fame honors musicians and music-industry figures who have contributed to the energy and evolution of rock music. To be eligible for inclusion,…
Ancestor of Mammals Discovered The fossil skull of a 260-million-year-old sheep-sized animal was found near Williston on the Northern Cape, South Africa. It is the most primitive member yet…
Third Party Candidates Nader, Buchanan, and some candidates you may not have heard about by David Johnson This article was posted on October 16, 2000. According to the Federal…
(Encyclopedia) Neanderthal manNeanderthal mannēănˈdərthôlˌ, –tôlˌ [key] or Neandertal manNeandertal man–tôlˌ [key], a species of Homo, the genus to which contemporary humans belong, known as H.…
(Encyclopedia) leukemialeukemial&oomacr;kēˈmēə [key], cancerous disorder of the blood-forming tissues (bone marrow, lymphatics, liver, spleen) characterized by excessive production of immature or…
(Encyclopedia) sex, term used to refer both to the two groups distinguished as males and females, and to the anatomical and physiological characteristics associated with maleness and femaleness. Sex…
BiologyAdvanced-Level Science ProjectsBiologyDo Plants Sweat Like People Do?What Types of Bacteria Are Found in Your House? Is the DNA of a Cow Different from a Chicken's? In This Section…
(Encyclopedia) vaccination, means of producing immunity against pathogens, such as viruses and bacteria, by the introduction of an killed or weakened microorganism, a harmless piece of a…
