Answer this with explaintion (im a teacher)
C. Assessment Application/Outputs (Please refer to DepEd Order No. 31, s. 2020) Directions: Read the questions carefully and choose the letter of the correct answer 1 What system is responsible for the exchange of carbon dioxide between the atmosphere and between the blood and the body cells A Circulatory system Clinmune system B Digestive system D. Respiratory system 2 Which of these is the work of the respiratory system? A Gas exchange between the extemal environment and the body's circulatory system B. Holding up the body and giving it support and shape C. Breaking down food for it to be used by the body D. Transport system of the body 3. How are circulatory and digestive systems related? A They both process and transport essential nutrients to the body B. They both have different function and no relation to each other. C.They both give oxygen to the body D. None of the above 4. What will happen if the respiratory system and circulatory system do not work together? A The body will still get necessary nutrients essentials to the body B. There will be no gas exchange function so the cells would die C. The body will continue to function automatically D. All the above 5. What is the function of the blood vessels and capillaries? A They pump blood to the heart B. They filter impurities from the blood. They carry messages from the brain D. They carry blood to all parts of the body 6. Where does the exchange of gases take place? A. alveoli 6 bronchi C. nostrils D. trachea 7. Why is blood important? A beonuse it helps us keep healthy B. because it has water that flows with it C because the blood is colored red and it flows like a river D. because it delivers vital nutrients and nourishment to the body 8. Why does the blood turn dark red as it circulates through the body? A It starts to clot B. It gets old and dirty as it flows through the body c The oxygen in it is replaced with carbon dioxide D. The farther the blood from the heart the darker med it is​