C or D I hope this helps I did t give an exact answer but it might help you
Answer:
True.
Explanation:
In Biology, blood pH can be defined as a measure of the hydrogen ion (H¯) concentration of blood i.e the level of alkalinity or acidity of blood.
Basically, the normal blood pH of a human being should be between 7.35 and 7.45.
Hence, one of the ways in which the body regulates blood pH is with proteins by accepting and releasing hydrogen ions. Typically, when the blood pH falls, the hydrogen ions (H¯) are accepted (absorbed) while hydrogen ions are released when the blood pH rises.
A protein such as haemoglobin which makes up a composition of the red blood cells, binds an amount of acid required to regulate blood pH.
Hence, the substance that makes the blood red is an iron containing protein known as hemoglobin.
Answer:
B. a scientifically controlled experiment
Explanation:
The event that led to the decline of Franz Mesmer's brand of hypnosis was a scientifically controlled experiment.
The hypnosis theoretized by Franz Mesmer was based on his belief in the existence of a form of energy transfer between living and non living things but this was debunked and eventually declined after the popularity of scientifically controlled experiment.
Plato, the notorious greek philosopher, had a very specific way of viewing the arts and their meaning to society at the time. To Plato, art was a way of imitation because the artist copied what was infront of him it was a sort of plagerism of reality. He considered the artist's point of view limited and far from the truth, which he was obsessed in attaining.
Even though he thought that art was far from the truth, since it was only a copy of reality, he recognized art's power over human being's emotions. Both plastic arts and music were efficient tools to cause emotional reactions from the viewers, and therefore an effective way of teaching. He thought the influence art had on human emotions could be dangerous at times, that's why it should be used as a didactic instrument.
In conclusion, art was only valuable to Plato if it produced emotional outcome in the subjects exposed to it, and this influence should be used to educate the masses, not to try to represent reality since it could never be completly accurate.
