69. The lichen is formed through the mutual combination of two species of the plants which are: [RRB ASM/GG 2004]
      (a) fungi and fern
      (b) algae and bryophyte
      (c) bacteria and virus
      (d) fungi and algae
Ans: (d)
70. An individual whose blood type is B may in an emergency donate blood to a person whose blood type is ? [NDA
    2011]
      (a) B or A
      (b) AB or A
      (c) A or O
      (d) AB or B
Ans: (d)
71. The lichen is an indicator of :
      (a) air pollution
      (b) water pollution
      (c) soil pollution
      (d) radiation pollution
Ans: (a)
72. The litmus paper used in the chemical laboratories is made from:
      (a) green - algae
      (b) blue - green algae
      (c) lichen
      (d) fungi
Ans: (c)
73. Which one among the following statements regarding cell is not correct? [NDA 2011]
      (a) Shape and size of cells are related to specific function
      (b) Some cells have changing shapes
      (c) Each cell has its own capacity to perform
      (d) Same type of cells are present in all body tissues
Ans: (d)
74. The lichen grown out at the barks of trees is called:
      (a) corticoles
      (b) sexicoles
      (c) sextiles
      (d) permalia
Ans: (a)
75. The lichen grown out at the empty rocks is called:
      (a) corticoles
      (b) sexicoles
      (c) sextiles
      (d) permalia
Ans: (b)
76. Which microorganism causes hepatitis B? [JPSC 2011]
      (a) Virus
      (b) Protozoa
      (c) Bacteria
      (d) None of the above
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