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Friday, 14 August 2026
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Biology Past Questions and Answers

Topic: Internal structure of a mammal

Jamb Biology Questions - Internal structure of a mammal

Question 1:
Which of the following statements on the mammalian circulatory system is NOT true?
  • A Blood in the pulimonary artery is richer in oxygen content than blood in the pulmonary vein
  • B The blood in the hepatic portal vein is the richest in food substance
  • C Blood flow is controlled by valves in the veins
  • D Arteries are generally thicker and larger than veins
  • E Fibrin helps in the formation of blood clot
View Answer & Explanation
Question 2:
In the mammalian respiratory system, exchange of gases occurs in the
  • A Lungs
  • B Bronchi
  • C Bronchioles
  • D Alveoli
View Answer & Explanation
Question 3:
One of the accessory organs of the digestive system is the
  • A Kidney
  • B Spleen
  • C Liver
  • D Lung
View Answer & Explanation
Question 4:
The structure labelled II articulates with III to form
  • A Sliding joint
  • B Hinge joint
  • C Pivot joint
  • D Ball-and-socket joint
View Answer & Explanation
Question 5:
Peripherals arrangement of vascular tissues in dicots is a characteristic of the internal structure of the
  • A Leaf
  • B Petiole
  • C Stem
  • D Root
View Answer & Explanation