Well there are many catastrophic scenarios that we already overcome. You should consider educating yourself about the great filter. A great filter is a hypothetical barrier that each civilization can or cannot overcome. From here on things get a little complex so I won't bore you with them. But there are experts in this theory called great filter and I'm sure they can tell you a lot about.
I believe it is the lungs.
Answer:
NA+ gates open and flow into the Sarcolemma of the muscle fiber.
DNA, Deoxyribonucleic acid. DNA is the empirical proof of God.
DNA can never be created naturalistically and is absolutely uniquely structured:
1. DNA contains multiple levels of coded organically constructed information that controls all cellular functions and no natural process is capable of creating or coding.
2. The amino acids that provide the coding fo the genetic information are homochiral. The few, not all, amino acids that can form naturally are not symmetric and are either left-handed or right-handed, called racemic. All amino acids in DNA, RNA, proteins, enzymes, ribosomes and other cellular assemblies are left-handed, 100%. No right-handed amino acid can function within DNA. Nature may produce a partial list of racemic amino acids, but cannot produce homochiral amino acids, again, only produced within a cell.
3. Phosphate penta-sugars provide the overall dual backplane physical structure to allow the amino acids to be affixed and are all right-handed homochiral, not produced in nature and exclusively right-handed.