list two structural difference between striated and unstriated muscle fibres.

Explanation

To answer the question regarding the structural differences between striated and unstriated muscle fibers, we can outline the following points:

### Step-by-Step Solution:

1. **Definition of Muscle Types**:
- Striated muscle fibers, also known as skeletal muscles, exhibit a banded appearance due to the arrangement of myofibrils.
- Unstriated muscle fibers, also referred to as smooth muscles, do not have this banded appearance.

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