Question

micro filaments are composed of a protein called
​

Answer 1

Answer:

$\answer$

Actin

Answer 2

Here is the Answer

Tubulin

Explanation :  Microtubules are the largest type of filament, with a diameter of about 25 nanometers (nm), and they are composed of a protein called tubulin. Actin filaments are the smallest type, with a diameter of only about 6 nm, and they are made of a protein called actin.