- 1. Why do plants produce carbon dioxide and oxygen?
- 2. Which of the following is an important function of stomata in a leaf?
- 3. Which substance is excreted from the lungs?
- 4. Where is urea made in the human body?
- 5. What passes through the membranes of kidney machine?
- 6. Which one of the following animal can survive without drinking water?
- 7. The term glycogenesis means, the conversion of
- 8. The removal of amino group from amino acid is called
- 9. According to the removal of nitrogenous wastes, reptiles and birds are the examples of
- 10. What happens if the blood plasma is too concentrated?
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