Answer:
Tropomysin, calcium
Explanation:
Tropomysin is a protein that prevents muscle contraction hence acts as a contraction inhibitor. It wraps around the actin blocking the binding sites for myosin on the actin.
Muscle will only contract when they get a rush of calcium ions.
The calcium ions binds to troponin, the troponin changes its shape. The change in shape will remove tropomyosin from the binding sites allowing myosin to bind on the actin leading to muscle contraction.
Answer:stopped many jobs and affected peoples life style
Explanation: many places closed down and people lost there jobs. People that like to go to the gym no longer cant and many places arent dine in anymore
The answer to this question is:
Light (sunlight), water, and carbon dioxide! Oh, and chloroplasts.
Answer: A
Explanation: All living organisims use energy