Which of the following BEST explains the reason rainbows are created when white light interacts with water droplets?
A) water droplets act as lenses to focus white light into specific wavelengths of light
B) when the medium changes from air to water, white light is bent to separate different wavelengths
C) the water droplets change the speed of wavelengths of light, which change the color
D) the water droplets cause white light to be reflected off into different colors of light

Texas bluebonnet plants seen in this photo are an example of which ecological unit?

Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?

Both destructive and constructive, the natural event seen here, is important in destroying and creating landforms on earth. what is this event called? a) deposition b) flooding c) landslide d) sedimentation