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Thursday, 30 April 2026
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Biology Past Questions and Answers

Jamb 1999 Biology Questions

Question 31:
Th chitin in the exoskeleton of many arthropods is strengthened by
  • A Calcium compounds
  • B Organic salts
  • C Lipids
  • D Proteins
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Question 32:
The structure labelled II articulates with III to form
  • A Sliding joint
  • B Hinge joint
  • C Pivot joint
  • D Ball-and-socket joint
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Question 33:
Which of the bones is the radius?
  • A I
  • B II
  • C III
  • D IV
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Question 34:
The construction of dams may lead to an increase in the prevalence of
  • A Typhoid fever, measles and yellow fever
  • B Tuberculosis, leprosy and trypanosomiasis
  • C Guinea worm, malaria and tuberculosis
  • D Malaria, bilharziasis and onchocerciasis
View Answer & Explanation
Question 35:
Floating microscopic heterotrophs are mostly grouped as
  • A Phytoplankton
  • B Zooplankton
  • C Microbes
  • D Nekton
View Answer & Explanation