Question

each thick filament is composed of many molecules of , each consisting of two twisted protein strands with globular parts called . need help? review these concept resources. rate your confidence to submit your answer. high medium low reading © 2025 mcgraw hill. all rights reserved.

Explanation:

In muscle - structure, thick filaments are made of myosin molecules. Each myosin molecule has two twisted protein strands with globular heads.

Answer:

First blank: myosin; Second blank: heads