Answer:
what is black death clear it first
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:
An isolated system can NOT exchange energy or matter with it's surroundings. This is why it is isolated.
Answer:
A does dissolve in a greater degree as the temperature increases. B does not dissolve up to 80 degrees.
By the convergence of two tectonic plates
