When muscle cells have more glucose than they need for energy, they may store some of the excess as?

The answer is glycogen.

Explanation:

Glycogen is a polysaccharide of glucose that serves as a store of energy for muscle cells in animals and fungus.

Muscle glycogen turns into glucose in muscle cells and also in the liver is turned to glucose to assist the whole body including the central nervous system, which is the brain and the spinal cord.

I hope it helps!

straight or amphibians are homeothermic to thermal

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.