Question

question 12
1 pts
the amount of blood that is pumped out of the left ventricle with each heartbeat is known as

question 13
1 pts
hematocrit is the percentage of the blood that is made up of:
red blood cells and plasma
white blood cells
red blood cells
plasma

question 14
1 pts
red blood cells contain an oxygen - binding substance called

Explanation:

• Question 12: Stroke - volume is defined as the amount of blood pumped out of the left ventricle with each heartbeat.
• Question 13: Hematocrit is the percentage of blood volume that is occupied by red - blood cells.
• Question 14: Red blood cells contain hemoglobin, an oxygen - binding substance.

Answer:

Question 12: Stroke - volume
Question 13: red blood cells
Question 14: Hemoglobin