Answer:
This theory is true.
Explanation:
Whenever a nerve cell is stimulated, it emits a signal that will always cause the same sensation. Nerve cells are part of the nervous tissue of some organs and can be divided into two types: neurons and glial cells.
What you need to know about these cells, to consider the theory shown above to be true, is that nerve cells obey the "all or nothing" law, that is, no matter the intensity of the stimulus, if they are stimulated, the as little as possible, will always cause the same sensation.
(What was happening in the year 1000 in Europe)
Danes control England. Canute takes throne (1016), conquers Norway (1028), dies (1035); kingdom divided among his sons: Harold Harefoot (England), Sweyn (Norway), Hardecanute (Denmark). Macbeth murders Duncan, king of Scotland. Robert Guiscard, Norman invader, establishes kingdom in Italy, conquers Sicily (1072).
(Changes that occurred in Europe)
During the High Middle Ages, which began after 1000, the population of Europe increased greatly as technological and agricultural innovations allowed trade to flourish and the Medieval Warm Period climate change allowed crop yields to increase.
<span>didn't tax and spend enough?
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The discovery of radioactivity closely followed the discovery of X-Rays. The X-Ray was accidentally invented by Wilhelm Conrad Röntgen in 1895. With the help of his wife, Röntgen tested his wife's hand and captured the bones in her hand and her wedding ring. It became the first röntgenogram and garnered attention from the public and the scientific community.