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81
Which of these is not true? grass in the above food chain
  • A. trap all the sunlight
  • B. trap a small percent of the sun energy
  • C. are primary producers
  • D. are eaten by primary consumers
  • E. contains chlorophyll
View Answer & Discuss (12) JAMB 1979
82
Insect show consideration powers of water conservation. This is due to the fact that
  • A. The chitinous cuticle is impregnated with tanned protein
  • B. Nitrogenous waste is eliminated as urea
  • C. Chitin is impermeable to water
  • D. The malpighian tubules are impermeable to water
  • E. The curticle is covered with wax
View Answer & Discuss (5) JAMB 1979
83

Root hair have their origin from

  • A. Endodermis
  • B. Pericycle
  • C. Cortex
  • D. Epidermis
  • E. Xylem
View Answer & Discuss (14) JAMB 1979
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free
Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
84
The element nitrogen is utilized in
  • A. Formation of ATP
  • B. Formation of glucose
  • C. Formation of amino acid
  • D. Photosynthesis
  • E. None of the above
View Answer & Discuss (4) JAMB 1979
85
Magnesium is utilized in the formation of
  • A. ATP
  • B. Glucose
  • C. Amino acids
  • D. Chlorophyll
  • E. Fats
View Answer & Discuss (9) JAMB 1979
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Download WAEC May/June App - Get all past questions and answers, 100% offline - 43208
WAEC Past Questions, Objective & Theory, Study 100% offline, Download app now - 24709
WAEC offline past questions - with all answers and explanations in one app - Download for free