Biology Mock Test series - 6

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1. 
From which part of the cinchona plant is the drug extracted?

2. 
Which of the following chemical substances is secreted by a particular species of animal to attract another member of the same species?

3. 
What is the phenomenon called when the androecium and gynoecium of a bisexual flower mature at different times?

4. 
What causes red rot disease in sugarcane?

5. 
Which of the following is the largest single-celled organism?

6. 
Which one of the following crop combinations is not commonly adopted in mixed cropping in India?

7. 
Which type of plant is a cactus classified as?

8. 
Which one of the following gases is released during photosynthesis?

9. 
Which crop benefits from nitrogen-fixing bacteria?

10. 
The fruit of which of the following plants is found underground?

11. 
Molybdenum deficiency affects the activity of-

12. 
Why can bats fly in the dark?

13. 
Which one of the following animals belongs to the phylum Mollusca?

14. 
Which of the following produces aflatoxins?

15. 
Which of the following is considered a living fossil of plants?

16. 
Which among the following is the largest phylum in the animal kingdom with respect to the number of species?

17. 
Which of the following animals has the longest gestation (pregnancy) period?

18. 
Bark of which tree is used as a condiment?

19. 
Which of the following causes damping off of seedlings?

20. 
Which of the following plants lacks vascular tissues for water and nutrient transport?

21. 
What happens to blood pressure if the radius of blood vessels decreases?

22. 
EBOLA is a-

23. 
Which one of the following elements is present in the green pigment of leaves?

24. 
Which of the following controls blood pressure?

25. 
How many neck canal cells are present in the archegonium of a fern?

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