Biology Mock Test series - 6

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1. 
How many neck canal cells are present in the archegonium of a fern?

2. 
Which of the following controls blood pressure?

3. 
What causes red rot disease in sugarcane?

4. 
Which of the following animals has the longest gestation (pregnancy) period?

5. 
Which of the following chemical substances is secreted by a particular species of animal to attract another member of the same species?

6. 
EBOLA is a-

7. 
Which of the following is considered a living fossil of plants?

8. 
Which type of plant is a cactus classified as?

9. 
Which of the following produces aflatoxins?

10. 
Which among the following is the largest phylum in the animal kingdom with respect to the number of species?

11. 
Which one of the following gases is released during photosynthesis?

12. 
What is the phenomenon called when the androecium and gynoecium of a bisexual flower mature at different times?

13. 
Which crop benefits from nitrogen-fixing bacteria?

14. 
Why can bats fly in the dark?

15. 
Which one of the following elements is present in the green pigment of leaves?

16. 
Which of the following is the largest single-celled organism?

17. 
Which of the following causes damping off of seedlings?

18. 
Which one of the following crop combinations is not commonly adopted in mixed cropping in India?

19. 
From which part of the cinchona plant is the drug extracted?

20. 
What happens to blood pressure if the radius of blood vessels decreases?

21. 
Bark of which tree is used as a condiment?

22. 
The fruit of which of the following plants is found underground?

23. 
Which one of the following animals belongs to the phylum Mollusca?

24. 
Which of the following plants lacks vascular tissues for water and nutrient transport?

25. 
Molybdenum deficiency affects the activity of-

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