MCQOPTIONS
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| 1. |
In the previous chapter we have studied that plants take in carbon dioxide and give out oxygen in the process of photosynthesis- In animals, during respiration, oxygen is taken in and carbon dioxide is given out. Which of the following organ, is a part of that respiratory system? |
| A. | Lungs |
| B. | Stomach |
| C. | Heart |
| D. | Brain |
| Answer» B. Stomach | |