Answer:
The blood pumped by the heart is transported to different parts of the body to deliver oxygen.
Step-by-step explanation:
Homeostasis is a process whereby living cells maintain a stable internal environment despite changes in their external environment. One way cells perform homeostasis is by ensuring oxygen gas, which is required for cellular respiration, reaches all the cells. However, the circulatory and respiratory systems work hand in hand to fulfill this.
The respiratory system brings in oxygen present in air, which is then carried by a pigment in the blood called haemoglobin, to every part of the body. Hence, respiratory system brings in the oxygen gas while circulatory system ensures the oxygen gas is everywhere in the body.