Introduction Rapidly growing bacteria are exposed to constantly changing environments and must be able to adapt quickly if they are to survive and successfully compete with other organisms. Unless they take advantage of the change and respond quickly they will be crowded out by other organisms (N...

Alex Provencal April 19, 2004 Professor Mobius Comets: The Known and Unknown Long ago comets were understood by people to be a sword or as a symbol for death, while others thought it was the appearance of the head of a woman with streaming hair which symbo...

The Solar System consists of the Sun, the nine planets and their satellites; the comets, asteroids, meteoroids, and interplanetary dust and gas. It is composed of two systems, the inner solar system and the outer solar system. The inner solar system contains the Sun, Mercury, Venus, Earth and Ma...