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691
The spores of mucor are dispersed by
  • A. water
  • B. wind
  • C. insects
  • D. explosive mechanism
View Answer & Discuss (5) JAMB 1993
692
The butterfly is of great economic importance because
  • A. of its use in scientific studies
  • B. it sucks nectar from flowers
  • C. it adds to the beauty of the enviroment
  • D. it polllinates flowers of crops and other plants
View Answer & Discuss JAMB 1993
693
Manufactured food in the plant is transported through the
  • A. xylem
  • B. phloem
  • C. cambium
  • D. cortex
View Answer & Discuss JAMB 1993
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694

Interveinal chlorosis is normally associated with the deficiency of

  • A. magnesium
  • B. potassium
  • C. iron
  • D. calcium
View Answer & Discuss (24) JAMB 1993
695
Osmic acid boiled with a solution of food substance gave a black precipitate. This indicates the presence of
  • A. fats and oil
  • B. proteins
  • C. amino acids
  • D. starch
View Answer & Discuss (3) JAMB 1993
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