What is the evolutionary significance of the genetic code

A genetic code shared by diverse organisms provides important evidence for the common origin of life on Earth. That is, the many species on Earth today likely evolved from an ancestral organism in which the genetic code was already present.

Explanation:

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.  

answer; aerobic conditions; citric acid cycle (krebs cycle) electron transport chain;         anaerobic conditions; fermentation; both glycolysis;