(Encyclopedia) skin cancer, malignant tumor of the skin. The most common types of skin cancer are basal cell carcinoma, squamous cell carcinoma, and melanoma. Rarer forms include mycosis fungoides (a…
(Encyclopedia) breeding, in agriculture and animal husbandry, propagation of plants and animals by sexual reproduction; usually based on selection of parents with desirable traits to produce improved…
(Encyclopedia)
CE5
Plant and animal evolution
[Modified from Alfred Gunderson in Brooklyn Botanic Garden Leaflets, Ser. 18, No. 4 (1930); used by permission.]
evolution, concept that embodies…
Was Three Company? Past evidence uncovered in Israel and France has shown that Neanderthals lived on Earth at the same time as modern Homo sapiens. Neanderthals were found to have lived about 34,…
Find out when some of the most historical sites in the U.S. became national landmarks. by Jennie Wood The U.S. began the National Historic Landmark Program to recognize and preserve the…
Here are the key news events of the month organized into three categories: World News, U.S. News, and Business, Society, and Science News. World Pakistani…
Here are the key news events of the month organized into three categories: World News, U.S. News, and Business, Society, and Science News. World | Nation | Business/…
Bubonic PlagueEpidemics of the PastSmallpox: 12,000 Years of TerrorBubonic PlagueInfluenza: A Twentieth-Century Epidemic Ring around the rosy, A pocket full of posies, Ashes … ashes, We all…
500 Notable African American Biographies A-Z List Civil Rights Leaders Figures in Abolitionism Government Officials Religious Leaders Scholars & Educators Scientists & Inventors…
+ BODY SYSTEMS INTEGUMENTARY SYSTEM MUSCULAR SYSTEM SKELETAL SYSTEM CIRCULATORY SYSTEM NERVOUS SYSTEM LYMPHATIC SYSTEM RESPIRATORY SYSTEM ENDOCRINE SYSTEM DIGESTIVE…
