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Thursday, 02 April 2026
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Biology Past Questions and Answers

Jamb Biology Questions

Question 16:
Roots of plants are normally
  • A Positively phototropic
  • B Negatively geotropic
  • C Negatively hydrotropic
  • D Positively hydrotropic
  • E Negatively chemotropic
View Answer & Explanation
Question 17:
The main function of the swim-bladder is for
  • A Swimming
  • B Detecting sound
  • C Buoyancy
  • D Breathing
  • E Reproduction
View Answer & Explanation
Question 18:
Which of the following pairs are the products of sucrose hydrolysis?
  • A Glucose + glucose
  • B Fructose + fructose
  • C Glucose + fructose
  • D Galactose + glucose
  • E Fructose + galactose
View Answer & Explanation
Question 19:
Which of the vertebra has a projection called odontoid process?
  • A Atlas
  • B Axis
  • C Thoracic
  • D Lumber
  • E Caudal
View Answer & Explanation
Question 20:
Refrigeration, as a method of preservation, has ONE of the following characteristics:
  • A Kills all the bacteria
  • B Kill most of the bacteria
  • C Makes the bacteria inactive
  • D Dries food
  • E Hydrolyses food
View Answer & Explanation