SSC Biology Previous year questions Set 9

81. The elements known as primary nutrients for plants[SSC CGL Tier-I (CBE) 2016]
A. Nitrogen, Phosphorus and Potassium
B. Nitrogen, Oxygen and Silicon
C. Potassium, Boron and Nitrogen
D. Nitrogen, Phosphorus and Iron

Answer –A. Nitrogen, Phosphorus and Potassium

82. What is the transplantation of graft between genetically identical individuals [SSC CGL Tier-I (CBE) 2016]
A. Autograft
B. Isograft
C. Allograft
D. Xenograft

Answer –B. Isograft

83. BCG is vaccine meant for protection against which of the following diseases? [SSC CGL Tier-I (CBE) 2016]
A. Mumps
B. Tuberculosis
C. Leprosy
D. Tetanus

Answer –B. Tuberculosis

84. Which one of the following is a carbohydrate ? [SSC MTSt 2017]
A. Urea
B. Insulin
C. Glycine
D. Glucose

Answer –D. Glucose

85. Bacterial decomposition of biological material under anaerobic condition is [SSC CGL Tier-I (CBE) 2016]
A. fermentation
B. fertilization
C. contamination
D. composting

Answer –A. fermentation

86. What is cultivation of trees, in dwarf form? [SSC CGL Tier-I (CBE) 2016]
A. Bonsai
B. Ikebana
C. Dwarfism
D. Etiolation

Answer –A. Bonsai

87. Which one of the following is not the excretory organ? [SSC CGL Tier-I (CBE) 2016]
A. Kidneys
B. Liver
C. Lungs
D. Spleen

Answer –D. Spleen

88. Among the following which one lays eggs and does not produce young ones directly? [SSC CGL Tier-I (CBE) 2016]
A. Echidna
B. Kangaroo
C. Porcupine
D. Whale

Answer –A. Echidna

89. Biodegradable wastes can usually be converted into useful substances with the help of: [SSC CGL Tier-I (CBE) 2016]
A. Bacteria
B. Nuclear proteins
C. Radioactive substances
D. Viruses

Answer –A. Bacteria

90. The presence of air bubble in blood stream is dangerous to life because[SSC CGL 2016]
A. Air combines with blood forming a complex
B. The flow of blood increases manifold
C. The flow of blood is obstructed
D. The pressure of blood increases manifold

Answer –C. The flow of blood is obstructed

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