The answer would be : <span>endoplasmic reticulum.
Hope this helps !
Photon</span>
I think the Atrial fibrillation is the uncoordinated beating of the atria rapid. These are rhythm in which all the atrial activity is depicted as chaotic undulations of the base line. Atrial rhythms include; atrial fibrillation, atrial flutter, premature atrial contraction, wandering pacemaker. Atrial fibrillation can cause an increased risk of stroke, heart failure and other heart related complications.
I don't know the given choices but I found an answer to the above question.
The answer is:
<span>No longer dividing cells of the mammalian brain. Post-mitotic cells will exit the cell cycle and will not contain cells in S phase.
</span>S-phase<span> -</span> part of the cell cycle in which DNA is replicated. Synthesis phase occur between G1 phase<span> and G</span>2 phase<span>.</span>
