The answer is number 4 hope this helps
Answer: If you are 80 years and older, it should be less than 150/90 (“150 over 90”). In general, the lower your blood pressure, the better. A blood pressure reading of less than 90/60 is normal as long as you feel okay.
Type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth.
I believe its D. response neuron.
Hope this helps!
Love, Grace-