Answer:
Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later.
Explanation:
So a person can survive 4 to 6 minutes without oxygen, but may experience brain damage.
Answer: Exhaled air consists of 78 percent nitrogen, 16 percent oxygen, 4 percent carbon dioxide and potentially thousands of other compounds.
Explanation: Does this help???
Answer - Blood Flow
Reasoning - Insulin is used through out and mainly in the blood stream which relies it to stabilize through out the flow of the body
1--A.
2--E.
3--C.
4--D.
5--B.
I Think this is correct Hope it Helps ^.^