1 .  The pH value of human blood is……….?

2.     The metal present in the chlorophyll……?

3. The rarest blood group is………?

4. The average weight of the human brain is……?

5. Which part of brain affected by alcohol………?

6. Most of the red, blue and purple colours of plants are due to a pigment called ?

7. Part of eye used during eye donation is…………?

8. The hardest part of human body is………….?

9. Weight of animal body is mostly the weight of…?

10.   Bile is stored in ……?

11. The plants, which grow under water stress conditions of deserts are……?

12. Which is the smallest gland in human body?

13. Blood group was discovered by……..?

14. Gall bladder stones are deposits of …….?

15. The disease caused by deficiency of protein in children is called…?

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