Help. Can somebody please answer the question in the photo?

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.

The two required components for a generator are

Ryan is examining the energy of the particles in a bar of gold. what is ryan most likely studying?