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Friday, 14 August 2026
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Biology Past Questions and Answers

Topic: Organ

Jamb Biology Questions - Organ

Question 1:
Which of the following is not an excretory organ in animals?
  • A Lungs
  • B Kidney
  • C Leaf
  • D Large intestine
  • E Skin
View Answer & Explanation
Question 2:
One significant difference between roots and stem is that
  • A Branch roots originate in the pericycle while stem do not
  • B Stems are always bove the ground while root are always below the ground
  • C Stems are positively geotropic while roots are negatively geotropic
  • D Stem are sometime used for storage while roots are never used
  • E Stems grow in both length and circumference while root grow only in length
View Answer & Explanation
Question 3:
which part of the human brain is concerned with reflexes controlling the rate of heart beat and breathing?
  • A Medulla
  • B Cerebrum
  • C Cerebellum
  • D Pineal body
  • E Olfactory lobe
View Answer & Explanation
Question 4:
The center which controls respiratory activities the mammalian brain is the
  • A Cerebrum
  • B Olfactory lobe
  • C Pituitary organ
  • D Cerebellum
  • E Medulla
View Answer & Explanation
Question 5:
Which of the following is NOT a function of the liver?
  • A Regulation of blood sugar
  • B Storage of iron
  • C Formation of bile
  • D Breakdown of excess amino acids
  • E Excretion of urea from the blood
View Answer & Explanation