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Tuesday, 10 November 2026
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Biology Past Questions and Answers

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Waec Biology Questions

Question 451:
WAEC 1997
The part labelled I in the diagram is called
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  • A Stoma
  • B Epidermis
  • C Ienticel
  • D Cortex
  • E Parenchyma
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Question 452:
WAEC 1997
The malpighian tubule plays a major role in
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  • A Inspiration
  • B Digestion
  • C Secretion
  • D Reproduction
  • E Excretion
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Question 453:
WAEC 1997
Filtered blood from the kidney is carried back to the circulatory system
through the
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  • A Hepatic portal vein
  • B Renal artery
  • C Renal vein
  • D Pulmonary vein
  • E Vena cava
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Question 454:
WAEC 1997
The early removal of the pituary gland in animals may cause
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  • A Ceasation of growth
  • B Gigantism
  • C Poor mental development
  • D Goitre
  • E Inability to digest food
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Question 455:
WAEC 1997
A high concentration of auxin in the root will
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  • A Inhibit growth
  • B Stimulate growth
  • C Not affect growth
  • D Cause the root to roth
  • E Reduce water absorption
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