While waiting for a signal to contract, a muscle cell membrane will maintains a slightly higher positive charge on the OUTSIDE of the membrane. This is possible only because SODIUM POTASSIUM ATPASE pumps are available to generate this charge difference.
The ion concentration difference across the plasma membrane set up electric signals called action potentials which cause a muscle cell to contract.
Answer:
International efforts to reduce resource and ecological depletion operate on a volunteer basis rather than a mandatory one.
Explanation:
This is due to the fact that nations do not have jurisdiction over each other.
There are different categories you can pick from example Predation
Being born prematurely and
congenital defects.
The universal genetic code has a some kind of relationship to the hypotheses believed by many people as to the origin of life on the Earth. It is believed that both shared the life on Earth just like how a cell passes genetic information from one microsphere to another.
