Which muscle types allow only involuntary movement? . . a.. cardiac muscles and skeletal muscles. . . b.. smooth muscles and cardiac muscles. . . c.. smooth muscles and skeletal muscles.

The muscle types that allow only involuntary movement are smooth muscles and cardiac muscles. The correct answer is option B. Cardiac muscles are muscles found in the heart, which are responsible for the continuous pumping of the heart. Smooth muscles are found in the body's internal organs such as those in the digestive system.

It is evolution, because we all have some of the same traits like eye color or shape or ears.

The answer is d. when it begins to fall back to the child's hand