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Wednesday, 11 November 2026
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Biology Past Questions and Answers

Waec Biology Questions

Question 886:
The products of respiration are
  • A Nitrogen and water
  • B Nitrogen and carbon dioxide
  • C Water and oxygen
  • D Carbon dioxide and water
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Question 887:
Green plants lose water to the atmosphere through the process of
  • A Respiration
  • B Photosynthesis
  • C Transpiration
  • D Translocation
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Question 888:
The body temperature of a mammal has to be maintained at a fairly constant level because
  • A Excessive heat is continually lost by the body to the environment
  • B Their body temperature is always higher than that of the environment
  • C Evaporation of sweat cools the body
  • D Metabolic activities function best at certain temperature
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Question 889:
A urine sample of a patient, tested with Benedict/Fehling solution, gave an orange colored precipitate,
indicating the presence of
  • A Glucose
  • B Sucrose
  • C Lactose
  • D Maltose
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Question 890:
Which hormonal deficiency is likely to cause an accumulation of reducing sugar in the urine?
  • A Thyroxine
  • B Insulin
  • C Secretin
  • D Testosterone
View Answer & Explanation