Because they are made up of effector cells, muscle fibers
A) will combine.
B) tend to separate.
C) can contract.
D) can multiply.

Question

Quizplus · Accepted Answer

Muscle fibers are able to contract because they are made up of effector cells, which are specialized cells that can respond to stimuli and cause movement. This ability to contract is what allows muscles to create movement in the body. While muscle fibers can combine to form larger muscles, they do not tend to separate and do not have the ability to multiply on their own.

Because They Are Made Up of Effector Cells, Muscle Fibers