The answer is letter d. it has only 2 electrons in its first shell and 4 in the second shell. Basing from the electronic configuration of the carbon atom, the "s" orbital of carbon atom is completely filled leaving now the "p" orbitals partially filled. Thus in this case, carbon atom has four (4) valence electrons.
<span>Sodium pumps and potassium pumps will not be triggered to open or close therefore causing the cell to remain at electrochemical equilibrium (-70 mv) so there will be no movement of ATP. Also the phosphates needed to create ATP will be inhibited and with a negative charge the cell will not reach threshold to propagate a reaction along the axon.</span>
Answer: they are used to measure and keep things precise during constuction
Explanation: because if you watch videos and look up info and research it tells you about their jobs and what they use for their jobs
James Watson and Francis Crick