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716
At which trophic level would the highest accumulation of a non-biodegradable substance occur?
  • A. Primary producers
  • B. Tertiary consumers
  • C. Primary consumers
  • D. Secondary consumers
View Answer & Discuss (3) JAMB 1993
717

Two organisms of different species, living in close association but not dependent on each other are referred to as

  • A. parasites
  • B. commensals
  • C. symbionts
  • D. autotrophs
View Answer & Discuss (34) JAMB 1993
718
Which of the following instruments is NOT used in measuring abiotic factors in any habitat?
  • A. Microscopic
  • B. Thermometer
  • C. Hygrometer
  • D. Wind vane
View Answer & Discuss (2) JAMB 1993
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719
Plants adapted for life in salty marsh are called
  • A. hydrophytes
  • B. xerophytes
  • C. halophytes
  • D. epiphytes
View Answer & Discuss (4) JAMB 1993
720
Which group of plants would be the first colonizers in an ecological succession changing rocks to soil?
  • A. Mosses
  • B. Ferns
  • C. Lichens
  • D. Grasses
View Answer & Discuss (3) JAMB 1993
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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts