Which of the following is true about the speed of light? O it is a constant when the light is traveling in a vacuum.
O It speeds up or slows down depending on the observer.
O It is slowest in a vacuum.
O lt varies depending on the color of the light.

It is a constant when the light is traveling in a vacuum.

Explanation:

The illustrations and short film show that there is natural variation of coat color in the population of rock pocket mice living on the lava flow. The short film explains that mutations can cause a change in coat color, and that these genetic changes are being passed on to offspring.

Explanation: