Question

C. Define these terms.
1. Cardiac cycle
3. Antigen
5. Double circulation
2. Heartbeat
4. Antibody
6. Hypertension
Pls answer it urgently​

Answer 1

Answer:

double circulation

the blood is pass twice through heart

once to be purify it

and again to distribute it to different parts of the body

heart beat

pumping of the heart

Answer 2

Answer:

1. Cardiac cycle is a collection of events that happened during a single heartbeat

3. Antigen is a foreign substance to our body . It is a protein type one .

5. Double circulation is a type of circulation in which blood reaches heart twice a day .

4. Antibody is a substance produced by the body which opposes antigen

6. Hypertension is a condition in which the heart pressure exceeds than the normal condition