B and C is where cell division takes place
Answer:

Explanation:
1. Distance from epicentre
The average speed of P-waves is about 8 km/s.
(a) Convert minutes to seconds

(b) Calculate the distance

2. Time for S-wave
The average speed for an S-wave is about 3.45 km/s.

Answer:
of course whats the question
Explanation:
ill try to help you understand in the best way that i can
Answer:
70 ml/beat.
Explanation:
Stroke volume may be defined as the volume of the blood that are pumped by the left ventricle in one contraction. The blood output can also be determined by knowing the stroke volume.
The stroke volume can be calculated by the formula as follows:
Stroke volume = End diastolic volume - End systolic volume
Here, end diastolic volume = 120 and end systolic volume = 50.
Stroke volume = 120 - 50
Stroke volume = 70 ml/ beat.
Thus, the answer is 70 ml/ beat.