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Friday, 03 April 2026
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Biology Past Questions and Answers

Biology Questions

Question 2156:
Which of the following substances has the highest amount of energy in joules per unit weight?
  • A Carbohydrates
  • B Fats
  • C Proteins
  • D Vitamins
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Question 2157:
Which of the following pairs of scientists discovered the Rhesis factor in human blood?
  • A Hooke and Lavine
  • B Darwin and Landsteiner
  • C Landsteiner and Lavine
  • D Hooke and Darwin
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Question 2158:
The study of an individual organism or a single species of organism and its environment is
  • A Autecology
  • B Ecological concepts
  • C Synecology
  • D Biotic composers
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Question 2159:
Which of the following is a nitrifying bacterium?
  • A Rhizobium
  • B Nictrobacter
  • C Azotobacter
  • D Pseudomonas
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Question 2160:
Which of the following is the effect of using artificial pollination in plant breeding?
  • A Production of healthy crops
  • B Lengthening the maturity time of crops
  • C Making crops susceptible to disease
  • D Improvement of the variety of crops
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