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Biology 2010 WAEC Past Questions

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21
The part labelled III is the
  • A. albumen
  • B. chalaza
  • C. yolk
  • D. air space
View Answer & Discuss (3) WAEC 2010
22
Which of the following statements ls true about transpiration? It is the
  • A. loss of water in the form of vapour from the surface of the’ leaf
  • B. loss of water in the form of vapour from the surface of the root
  • C. absorption of water in the form of vapour from the body of the pint
  • D. movement of water through the body of the plant.
View Answer & Discuss (1) WAEC 2010
23
Transportation of water in the xylem tissue involves the following except
  • A. root pressure
  • B. capillary action
  • C. transpiration pull
  • D. translocation
View Answer & Discuss (1) WAEC 2010
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24
The following are the major reasons why the butterfly lays eggs under the surface of a leaf except to
  • A. shade the eggs from the direct rays of the sun.
  • B. protect the eggs from predators
  • C. protect the eggs from being washed away by rain drops
  • D. camouflage the eggs
View Answer & Discuss (2) WAEC 2010
25
In which of the following organic compounds is the hydrogen-oxygen ratio equal to 2:1?
  • A. Proteins
  • B. Carbohydrates
  • C. Lipids
  • D. Vitamins
View Answer & Discuss WAEC 2010
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