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151
Which of the following explains the term pyramid of numbers?
  • A. The number of organisms in a trophic level
  • B. The relationship between plants in different trophic levels
  • C. The number of saprophytes and parasites in a habitat
  • D. The number of predators in a habitat
  • E. Progressive decrease in the number of individuals from lower to higher trophic level
View Answer & Discuss WAEC 1993
152
In which of the following processes is carbondioxide not given out?
  • A. Respiration in plants
  • B. Decay of organism
  • C. Burning of organic matter
  • D. Burning of fuels
  • E. During photosynthesis.
View Answer & Discuss (3) WAEC 1993
153
Sea water taken in by a living organism can be recycled into the atmosphere through all the following
processes except
  • A. transpiration
  • B. digestion
  • C. excretion
  • D. respiration
  • E. decay
View Answer & Discuss (2) WAEC 1993
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154
Which of the following water pollutant may contain organisms that cause dysentery?
  • A. Pesticides
  • B. Sewage
  • C. Industrial wastes
  • D. Fertilizers
  • E. Crude oil.
View Answer & Discuss WAEC 1993
155
Which of the following is not an adaptation of plants or animals to desert environment?
  • A. Well developed tap root system
  • B. Small leaves with thick Epidermis
  • C. Stems with spike-like leaves
  • D. Metabolic waste in the form of uric acid in some animals
  • E. Broad leaves for storage
View Answer & Discuss WAEC 1993
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