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Wednesday, 29 April 2026
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Biology Past Questions and Answers

Jamb Biology Questions

Question 631:
A physiological adaptation of plants to the problem of excessive water loss is
  • A Reduction in the number of stomata
  • B Reversal of the normal stomatal rythm
  • C Possession of shallow roots
  • D Ppossession of waxy curticle
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Question 632:
which of the ways of controlling bilharzia can result in pollution?
  • A Clearing water weeds on which the snail feed
  • B Treating infected people with drugs
  • C Preventing contamination of water by infected urine and faeces
  • D Applying chemical to kill the snails
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Question 633:
which of the following disease can be caused by a bacterium?
  • A Ringworm
  • B Poliomyelitis
  • C Malaria
  • D Syphilis
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Question 634:
Which of the following is a dangerous product of coal burning?
  • A Sulphur dioxide
  • B Carbon dioxide
  • C Carbon
  • D Nitrogen
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Question 635:
5 g of oven dried soil was heated in a furnace for 24 hours. After cooling, it weighed 4.8 g. What is the amount of humus in the soil?
  • A 40.0g per 100 g dry soil
  • B 4.4g per 100g dry soil
  • C 4.0 g per 100g dry soil
  • D 0.4g per 100g dry soil
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