What is the normal blood pressure in a healthy human?

In $ECG$,$P$-wave represents

In $ECG$,the $T$-wave represents:

What is the normal pulse pressure?

The difference between systolic and diastolic pressure in humans is

Complete the missing words in the statements given below:
$(a)$ Plasma without clotting factors is called serum.
$(b)$ $.........$ and monocytes are phagocytic cells.
$(c)$ Eosinophils are associated with $.........$ reactions.
$(d)$ $.........$ ions play a significant role in clotting.
$(e)$ One can determine the heart beat rate by counting the number of $.........$ in an $ECG$.