Caduceus
a staff with two oppositely twined serpents and surmounted by two wings; emblem of the U.S. Army medical corps. For veterinary medicine the double serpent was changed in 1972 to its present form with a single serpent.
See: staff of aesculapius.
Origin: L. The staff of Mercury; g. Keryx herald, the staff of hermes
This lesson looks at population attributes, regulation, and growth. It also covers population genetics, particularly gen..
Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..
Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..
Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..
Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..
Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..