Question

7. Identify and label four energy giving organ systems.
(4 marks)
Drin
Uring
. What happens in the four chambers of the heart?
(4 marks)
eft atrium:​

Answer 1

$\huge \sf\underline{Answer 2 }\dag$

The four chambers of the heart are the right atrium, left atrium, right ventricle and left ventricle. This helps in circulation of blood