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Q1. An anaerobic species of the bacterium Clostridium causes a very serious disease in human populations. Which one of the following?
Q2. Reserpine is a medicine to
Q3. Population means ...
Q4. An ecosystem consists of
Q5. A prairie is
Q6. Nitrification refers to
Q7. One way of checking the expansion of the Thar desert would be
Q8. The ozone layer of the earth is useful for living beings because
Q9. A hydrophyte is
Q10. The functional unit in ecology community is
Q11. The best example of an ecological community is
Q12. Aquaculture is the
Q13. The earliest human who practised crude surgery, kept records, created some art, and conducted for­mal burial rites were
Q14. It is said that the spiders of the Himalayas are native to the highest territory-higher than any animal of earth. Spiders are carnivorous. Therefore they must thrive by
Q15. Taiga represents
Q16. In a very hot climate, one is likely to find
Q17. The two most prevalent ions in the marine habitat are
Q18. Snakes and vultures are eating rats in a field. If wild dogs are let into the field the immediate result will be a
Q19. Which of the following cells/structures are excretory in function? 1. Malpighian tubules, 2. Flame cells, 3. Amoeboid coelomocytes, 4. Chlorogogen cells
Q20. Radiocarbon dating is used to find the age of
Q21. The mutation theory of evolution was proposed by
Q22. Palaeontology is the study of
Q23. The Lamarckian theory of organic evolution is usually known as the theory of
Q24. Which of the following is a famous agricultural scientist who has been awarded a Nobel peace prize
Q25. In which part of India does saffron grow
Q26. An antibiotic is
Q27. Seeds can best be preserved in
Q28. Sharbati sonora refers to
Q29. Which of the following states is the largest producer of coffee in India?
Q30. Tea plants thrive best in
Q31. The maximum height that a tea plant can attain in nature is
Q32. The most important stimulant in tea leaves is
Q33. International Rice Research Institute is based
Q34. Turpentine is obtained from
Q35. Some plants feed upon insects for their nitrogen requirements. They are called insectivorous plants. Which of the following is such a plant?
Q36. The Red Sea derives its name from the
Q37. Which country is called the sugar bowl of the world?
Q38. Cotton fibre is obtained from the
Q39. The smallest living cell is that of a
Q40. Nostoc, the blue-green alga, is included under the kindom/division
Q41. A prokaryote is
Q42. Bacteria are among the smallest living organisms in the world. However, they multiply very rapidly. Under optimal conditions a bacterial cell usually divides every 20 minutes. If this rate of multiplication continues uninhibited for 24 hours, a single bacterium will produce a bacterial mass up to
Q43. The tissue that plays a leading role in the elongation of many bones is
Q44. Normal bone growth is largely influenced by
Q45. The average ratio of white blood corpuscles to red blood corpuscles in the adult humans is
Q46. Labourers who do hard manual work deve op thick skin on their palms and soles which is due to
Q47. Leather is a derivative of
Q48. Enamel covers the
Q49. The digestive products of herbage consisting of cellulose in sheep are
Q50. Half-cooked potatoes, if eaten with .food, are not digested. This is because
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