Question

1. Write true or false:
1. Cellular respiration takes place in all the cells of living organisms.
2. All living organisms respire to get energy from food.
3. Our muscle cells do anaerobic respiration only when there is temporary deficiency of oxygen.
4. Breathing involves the movement of the diaphragm and the rib cage.
5. Whales and dolphins have gills for breathing.
6. Gills are projections of the skin.
7. The percentage of carbon dioxide is higher in inhaled air in comparison to exhaled air.
8. We often feel hungry after a physical exercise,
9. Increased physical activity reduces the rate of breathing.
10. Elephants, snakes and birds have lungs for breathing.​

Answer 1

Answer:

1. True
2. True
3. False
4. True
5. False
6. True
7. False
8. True
9. False
10. True

Explanation:

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