Question

the biggest and most powerful type of contractile fibers are: slow fibers (type iia) fast fibers (type iib) slow fibers (type i) fast fibers (type iii) 52 multiple choice 1 point which of the following is an example of a second class lever? nutcracker golf club can opener tweezers

Explanation:

1. In muscle - fiber types, fast fibers (Type IIB) are the biggest and most powerful. They have high contractile speed and force - generating capacity but fatigue quickly.
2. For levers, in a second - class lever, the load is between the effort and the fulcrum. A nutcracker is a classic example of a second - class lever. The effort is applied at the handles, the fulcrum is at the joint, and the nut (load) is between them.

Answer:

1. B. Fast fibers (Type IIB)
2. A. Nutcracker