Question

A group of muscle fibers responsible for a specific movement is called

a motor unit
a striated group
a fast-twitch unit.
a slow-twitch unit.

Answer 1

It would be the second one (a striated group)

Answer 2

Answer: 1. Muscle fibers

2. Endurance activities

3. A motor unit

4. All or none

5. Skeletal muscles

6. Smooth muscles

7. Cardiac muscles

Step-by-step explanation: