Biology Set 26 FAQs

1. The joint connecting the skull to the backbone, allowing the head to move side to side, is the:

2. The hard internal skeleton of echinoderms is made of:

3. Which of the following is NOT a part of the atmosphere–hydrosphere–geosphere–biosphere set of Earth systems?

4. The cell walls of diatoms are embedded with:

5. Unwanted pregnancies are generally removed by surgery only within the:

6. The scientist known as the 'Father of Indian Embryology' is:

7. Which of the following is a prokaryote?

8. Growth hormone is secreted by the:

9. Consider the following pairs: (I) Papaya – Unisexual flower (II) Mustard – Bisexual flower (III) Watermelon – Bisexual flower Which of the pairs given above is/are correctly matched?

10. In 1987, UNEP forged an agreement to freeze CFC production at the levels of the year:

11. The process of acquiring oxygen from outside the body and using it to break down food sources for cellular needs is called:

12. Vitamin D can be produced naturally by the body on exposure to:

13. The dialysing fluid in an artificial kidney has the same osmotic pressure as blood but is devoid of:

14. Receptors that detect smell are:

15. Which gas forms the largest part of air?

16. Consider the following pairs: (I) Bicuspid valve – Between left atrium and left ventricle (II) Tricuspid valve – Between left atrium and left ventricle (III) Semilunar valves – Openings of ventricles into pulmonary artery and aorta Which of the pairs given above is/are correctly matched?

17. The red colour of blood is due to:

18. Camels developed humps over time to:

19. The number of chambers in the heart of fishes is:

20. Earth is called the Blue Planet because:

21. A bone marrow transplant using stem cells from a healthy person is used to treat blood cancers like leukemia and the disorder:

22. A small fragment on a chromosome, formed by a non-staining secondary constriction, is called a:

23. Consider the following statements about reducing food miles: (I) It helps cut down the cost and pollution of transport. (II) It helps support local farmers. (III) It increases pollution during transport. Which of the above is/are correct?

24. Which of the following phyla shows organ-level organisation?

25. Consider the following statements: (I) Seeds require water for germination. (II) Most seeds do not require light for germination. (III) Sunlight is essential for the germination of all seeds. Which of the above is/are correct?

26. In reptiles and birds, each egg contains enough yolk to nourish the embryo until:

27. Which of the following shows the correct hierarchy of organisation in multicellular organisms?

28. Consider the following pairs: (I) Ernst Haeckel – Three kingdom system (II) Herbert F. Copeland – Five kingdom system (III) Carolus Linnaeus – Two kingdom system Which of the pairs given above is/are correctly matched?

29. The tiny pores on the surface of leaves through which gaseous exchange takes place are called:

30. Millets are also called: