Matter that electrons cannot move through easily is?

materials that allow electrons to move through them easily.

insulatorsMaterials through which electrons connot move easily.

elelctric currentThe steady flow of electrons through a conductor.

circuitAn unbroken path through which a electric current can flow.

Explanation:

Materials that have high resistance to electric current are called electric insulators. Examples include most nonmetallic solids, such as wood, rubber, and plastic. Their atoms hold onto their electrons tightly, so electric current cannot flow freely through them.

Hope it help

that is wrong, its not thymus.

a. to encourage apoptosis