Answer:
D. The skin
Explanation:
The skin is usually considered as supply-independent for oxygen delivery. The most affected organs and tissues considered as being supply-dependent for oxygen delivery are heart, brain and lungs. These are the most sensitive to oxygen deprivation, being the brain more than the other organs.
A. A statement of purpose
Crude oil I think but im not sure
Answer:
Lactic acid fermentation.
Explanation:
Lactic acid fermentation is responsible for the production of lactic acid. During intense activity, there is an excess of lactic acid fermentation that leads to high lactic acid concentrations, which in high quantities is toxic and causes soreness in the muscles after intense exercise.