One source of electric energy for an electric circuit is a:

a. battery
b. lightbulb
c. switch
d. wire

True or false when elements combine to form a mixture, the resulting chemical properties may be very different from those of the elements that make it.

In a stagnant pool of water, a crayfish may spend much of its time lying with one side of its carapace near the surface of the water. in this position, it will move the walking legs on that side in a rhythmic back-and-forth motion. explain the likely function of this behavior.

How will the system respond to a temperature increase?