PLS HELP ASAP In a few complete sentences explain how the bones/muscles relate to the nervous system. Then explain the steps involved in moving or completing an action.

Why do we perceive objects as retaining their brightness under different lighting levels?

Which line in the graph above best illustrates an effect of the carbon dioxide level in the blood on breathing rate before, during and after a period of exercise? 1.b,2.c,3.a,4.d

Identify the area on the image where the force of attraction is the strongest.