1. Analyse how two body systems interrelate to perform a named function/ functions

2. Section B
Analyse how the two body systems interrelate with each other to maintain an oxygen supply to the cells around the body and the removal of carbon dioxide. The role of the endocrine system would also come into this explanation (D1).

3. Task Add to the bottom of your P4 with a sub-title:
Analysis of how the respiratory and cardiovascular systems interrelate to maintain oxygen supply.
Now explain how the two systems work together to make sure oxygen reaches all of the cells and organs of the body.
Explain how carbon dioxide is removed from the body.
Orange (pg 199) & internet research to find the relevant information.