If the Na+ voltage-gated channels in a muscle cell open, the Na (sodium) ions rush inside the muscle cell and makes the cell more positive as Na ions carry positive charge on it. Due to the entry of positively charged ions inside the cell, the cell becomes less negative and more positive. This is called depolarization of cell.
Answer:
Index fossils
Explanation:
The index fossils are the fossils that come in very handy for the geologists when it comes to identifying or dating rock samples or other fossils. The reason for this is that the index fossils have already been dated. They are fossils that are very commonly found, wide dispersed, are easy to be identified, and are limited to only a certain geological period. These characteristics make them an excellent indicator for the dating of the rock layers in which they are found, or the fossils found in the same layers with them, without conducting further examinations.
Coal from swamp plants that formed millions of years ago.
Answer:
The correct option is B. Jean Charcot was the French neuroscientist that helped legitimatize the practice of hypnosis.
Explanation:
Hypnosis can be described as a state in which a person is numb or kind of asleep but is strongly focused to respond to questions being asked by the psychologist. This technique is used by psychologists for the treatment of psychological disorders. Hypnosis has also been known to serve as a therapy for pain management.
Jean Charcot was a French scientist that made up his name by identifying a number of neurological disorders. He is also known to legitimatize the practice of hypnosis for psychological purposes.
