The region of sarcomere where thin and thick filaments are ...

[karlynnae]

The region of sarcomere where thin and thick filaments are located is called the
 A) I band.
  B) A band.
  C) Z line.
  D) M line.
  E) zone of overlap.

Question 2

The structural theory that explains how a muscle fiber contracts is called the ________ theory.
 A) sliding filament
  B) excitation-contraction coupling
  C) neuromuscular
  D) muscle contraction
  E) action-myosin interaction

[Perkypinki]

Answer to Question 1

E

Answer to Question 2

A

[karlynnae]

Thank you!

[Perkypinki]

Always glad to help...