Answer:
idk you didnt put up a picture dude....
<span>The most important ions would be sodium, calcium, and potassium
Sodium and potassium are the main ions that have a big role in the action potential. </span>Calcium also has a role in muscle contraction. If their level is altered too much, the nervous and muscle system will be greatly disrupted and the effect could be life-threatening. Phosphate and magnesium also have a role in other mechanisms but less important than those 3
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➷ The brain uses electrical signals.
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Answer:
Serotonin
Explanation:
Please mark me brainliest
Answer:
Life is based on carbon; organic chemistry studies compounds in which carbon is a central element. The properties of carbon make it the backbone of the organic molecules which form living matter. Carbon is a such a versatile element because it can form four covalent bonds.
Explanation:
