Looking for answers? Westonci.ca is your go-to Q&A platform, offering quick, trustworthy responses from a community of experts. Experience the ease of finding quick and accurate answers to your questions from professionals on our platform. Explore comprehensive solutions to your questions from a wide range of professionals on our user-friendly platform.

When a muscle contracts, what two
things are changing within the cells to
cause the movement of the muscle?
A. color and size
B. shape and length
C. energy and fatigue