Turbines. Invented by Charles Parsons. I know I'm in middle school, but we are just learning about hydroelectric power.
Answer:
When calcium concentration increases during depolarization, it shifts the conformation of troponin and tropomyosin, and actin is able to associate with myosin. As calcium is taken up again by the sarcoplasmic reticulum the muscle cell relaxes.
Answer:
A
Explanation:
He discovered them in 1868. I hope this helps:)
