Answer:
Option (1).
Explanation:
Action potential may be defined as the change in the cell potential that helps in the transmission of the nerve impulse. The resting membrane potential of the cell is -70mV.
The depolarization phase of the cell has membrane potential towards more positive. After the depolarization phase, the sodium channels are closed and potassium influx occurs that causes the re-polarization of the cell. This activity of the re-polarization is not the consequence of the closing of the inactivation gates.
Thus, the correct answer is option (1).
Answer:
A
Explanation:
Because when particles move slower they start getting closer to one another, the attraction between them puls them toward each other.
Answer: During a chemical change chemical bonds in the reactants are broken and the elements in the reactants are rearranged, forming new chemical bonds and forming products with a different composition than the reactants.
Explanation: please mark brainlyest
Answer:
Lungs
Explanation:
Due to coal debris this may effect your respritory system causing someone to develop COPD or lung cancer.
Introns are cut out. Think of exons as the part of DNA that exit the nucleus (as RNA of course).