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1716

Gaseous exchange takes place in the adult toad through the

  • A. buccal cavity, bladder and lungs
  • B. buccal cavity, skin and lungs
  • C. tympanic membrane, lungs and gills
  • D. buccal cavity, skin and spiracle
  • E. gills skin and buccal cavity
View Answer & Discuss (1) WAEC 1990
1717
Breathing movement in mammals is accompanied by regular movements of the diaphragm and the
  • A. intercostal muscles
  • B. vertebral column
  • C. clavicle
  • D. pleural cavity
  • E. floating ribs
View Answer & Discuss WAEC 1990
1718
Which of the following are components of glomerular filtrate?
  • A. All the components of Blood except mineral salts
  • B. Water and salt only
  • C. All the components of blood except plasma protein and cells
  • D. Plasma proteins, red and white blood cells
  • E. Blood cells, amino acid, salts and nitrogenous wastes.
View Answer & Discuss (2) WAEC 1990
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1719
The mechanism by which useful materials in the glomerular filtrate are taken back into the blood is known
as
  • A. filtration
  • B. reabsorption
  • C. haemolysis
  • D. osmosis
  • E. dialysis
View Answer & Discuss WAEC 1990
1720
Which of the following takes place during the process of detoxication in the liver?
  • A. Poisonous substances in the body are converted into harmless substances
  • B. Fats and oils are broken into finer particles through emulsification
  • C. Excess glucose in the blood are converted into glycogen and stored
  • D. Worn- out red blood cells are broken down
  • E. Enough heat is generated to sustain the activities of the liver
View Answer & Discuss WAEC 1990
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