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Biology JAMB Past Questions

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531
If parents with blood groups AB and O produce six children
  • A. three of them will have group B
  • B. two of them will have group A
  • C. all the offspring will have group O
  • D. none of them will have group A
View Answer & Discuss (16) JAMB 1989
532

Which of the following is a sex-linked character?

  • A. Sickle-cell anaemia
  • B. Tongue rollling
  • C. Skin colour
  • D. Colour blindness
View Answer & Discuss (12) JAMB 1989
533
In an ecosystem, the LEAST efficient energy transfer link is from
  • A. producers to primary consumers
  • B. sun to producers
  • C. primary consumers to secondary consumers
  • D. secondary consumers to decomposers
View Answer & Discuss (14) JAMB 1989
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534
Lichen is an example of
  • A. saprophytic organism
  • B. a symbiotic association
  • C. an epiphytic plant
  • D. a carnivorous plant
View Answer & Discuss (2) JAMB 1989
535

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 rhythm
  • C. possession of shallow roots
  • D. possession of waxy cuticles
View Answer & Discuss (22) JAMB 1989
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