To show the type of activities completed by skeletal muscles
To identify how much energy is used at low resting levels
To describe the amount of movement required for maximal exertion
To highlight that a physical activity requires a body to use energy
The calcium<span> ions then flow into the cytoplasm and bind to the troponin and tropomyosin molecules in the actin filaments of the </span>muscle<span> cells. The binding of </span>calcium allows the troponin to change shape and expose the actin-myosin binding site. this is from this site:https://www.reference.com/science/role-calcium-muscle-contractions-e42334f57f1a7187
Plagiarism is wrong lol so there is is ^^^^
I believe it's either a or d, sorry I cant be of more help.
