To move your arm, which tissue types would be directly required? see section 39.2

To move our arms, the tissue type required is SKELETAL MUSCLE TISSUE. The skeletal muscle tissues directly needed for the movement of our arms include biceps, triceps and forearms. Muscles expand and contract and helps our body to move.
Skeletal muscles straited and striped muscles that are attached to the bones with the help of tendons.

Tay-Sachs a disease caused by an absence of an enzyme that break down fatty substance causing damaged to nerve cells