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Biology Past Questions

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956
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 & Discuss (6) JAMB 1999
957
Floating microscopic heterotrophs are mostly grouped as
  • A. phytoplankton
  • B. zooplankton
  • C. microbes
  • D. nekton
View Answer & Discuss (7) JAMB 1999
958
Vaccination is carried out in order to
  • A. check the production of poison
  • B. increase the activity of white blood cells
  • C. increase the number of red blood cells
  • D. stimulate the production of antibodies
View Answer & Discuss (4) JAMB 1999
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959
A soil consisting of alumina and iron (II)oxide is known as
  • A. loamy soil
  • B. clayey soil
  • C. laterite
  • D. podzol
View Answer & Discuss (3) JAMB 1999
960

The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as +0 is known as

  • A. predation
  • B. commensalism
  • C. parasitism
  • D. competition
View Answer & Discuss (3) JAMB 1999
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