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Biology 1998 JAMB Past Questions

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16
Unicellular organisms transport essential nutrients directly to all parts of their bodies by the process of diffusion because, they have
  • A. a large volume of surface area ratio
  • B. a large surface area to volume ratio
  • C. their bodies immersed in the nutrients
  • D. their outer membrane made of cellulose
View Answer & Discuss JAMB 1998
17

The heart of the adult frog consist of

  • A. two auricles and two ventricles
  • B. one auricle and one ventricle
  • C. two ventricle and one auricle
  • D. one ventricle and two auricles
View Answer & Discuss (6) JAMB 1998
18
In adult mammalian blood, the cells which lack nuclei are the
  • A. erythrocytes
  • B. lymphocytes
  • C. leucocytes
  • D. phagocytes
View Answer & Discuss (5) JAMB 1998
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19
Which of following movements occur during exhalation?
  • A. The diaphragm and intercostal muscles relax
  • B. The thoracic cavity increases in volume
  • C. The diaphragm and intercostal muscles contract
  • D. The diaphragm contracts and the intercostal muscle relax
View Answer & Discuss (4) JAMB 1998
20
In which of the following groups of animals is the malpighian tubule found?
  • A. Lizards, snakes and frogs
  • B. Crickets, houseflies and grasshoppers
  • C. Millipedes, centipedes and scorpions
  • D. earthworms, roundworms and flatworms
View Answer & Discuss (5) JAMB 1998
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