The answer would be the Sodium potassium pump. This structure is the one that plays the main role in the controle of different types of ions under normal cellular function, as well as when cellular function is abnormal. It exchanges sodium and potassium ions from inside and outside a cell through the cellular membrane. With this, a steady amount of ions are found inside and outside.
According to Freud's psychoanalytic theory, all psychic energy is generated by libido. Freud suggested that our mental states were influenced by two competing forces: cathexis and anticathexis. Cathexis was described as an investment of mental energy in a person, idea, or object.
It doesn't give the reader something to ponder after the essay.
<span>Choice (a) is correct. To make an amendment to the Articles, all 13 states had to agree. This made amendments particularly difficult: any one state could derail the entire process. This is why the Articles failed after such a short time, to be replaced by the current Constitution.</span>