medical root words. medical dictionary online. Many terms frequently used in science and medicine are derived from latin words. By combining the root words with, prefixes and suffixes many of the meanings of the terms can be deciphered. Use the following resources to better understand medical terms: Medical Roots or Stems.
How Chameleons Change Color. In addition to being responsive to light, chameleons change color when they are frightened and in response to temperature and other environmental changes. Hormones that affect special pigment-bearing cells in the skin cause the color change.
If you watch this chameleon reaction closely, you will see that a few seconds after the glycerol is added to the solution, the solution turns blue. The blue color appears when the violet (from permanganate MnO4-) and the green (from manganate MnO42-) solutions are mixed.