(c) spiral
      (d) comatic
Ans: (a)
22. Who was the inventor of bacteria?
      (a) Leeuwenhock
      (b) Robert Hooke
      (c) Robert Koach
      (d) Louis Pasteur
Ans: (a)
23. Human body"s main organ of balance is located in [CDS 2010]
      (a) inner part of ear
      (b) top part of vertebral column
      (c) front part of brain
      (d) middle
Ans: (b)
24. The bacteria which is found to be in the human intestine is :
      (a) corinobactireum
      (b) ashrrishia colie
      (c) bibreo coleri
      (d) Basils anthresis
Ans: (b)
25. The food poisoning is caused by :
      (a) clostrideam titeni
      (b) clostrideam boutulium
      (c) salmonela toyphosis
      (d) Baslils anthresis
Ans: (b)
26. Plants which grow on saline soils are [BPSC (Pre) 2011]
      (a) xerophytes
      (b) hydrophytes
      (c) halophytes
      (d) succulents
Ans: (d)
27. A deficiency of which one of the following minerals is most likely to lead to an immunodeficiency? [CDS 2010]
      (a) Calcium
      (b) Zinc
      (c) Lead
      (d) Copper
Ans: (d)
28. Which among the following is the correct increasing order of pH found in human body? [CDS 2010]
      (a) Gastric juice, saliva, blood
      (b) Blood, saliva, gastric juice
      (c) Saliva, blood, gastric juice
      (d) Gastric Juice, blood, saliva
Ans: (a)
29. Mosquito can be a vector for following diseases except [CDS 2010]
      (a) Yellow fever