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1826

Which of the following pairs of tissues is responsible for strengthening the plant?

  • A. Phloem and Epidermis
  • B. Parenchyma and Cambium
  • C. Collenchyma and Sclerenchyma
  • D. Collenchyma and Cambium
  • E. Xylem and Cambium
View Answer & Discuss (1) WAEC 1995
1827
Which of the following is not a tissue found in plants?
  • A. Epidermis
  • B. Phloem
  • C. Xylem
  • D. Dermis
  • E. Mesophyll
View Answer & Discuss (1) WAEC 1995
1828
Higher organisms use a transport system and not diffusion only to distribute nutrients because
  • A. the ratio of their surface area to volume is small
  • B. metabolic waste products diffuse to the surface of the organisms
  • C. the rate at which nutrients and other substances diffuse increases
  • D. substances to be transported move shorter distances to reach the numerous cells
  • E. the internal structures of the organisms are in direct contact with the environment.
View Answer & Discuss (2) WAEC 1995
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1829
In complex food relationships in a community, the primary, secondary and tertiary consumers are referred
to as
  • A. symbionts
  • B. omnivores
  • C. heterotrophs
  • D. autotrophs
  • E. carnivores
View Answer & Discuss WAEC 1995
1830
The cell membrane of a cell is said to be semi-permeable because
  • A. it allows only large molecular substances to pass through it into the cell
  • B. it is actively involved in energy production in the cell
  • C. it actively allows all substances to pass through it by diffusion
  • D. it is actively selective in allowing substances pass through it
  • E. fatty acids are only the building blocks of the membrane
View Answer & Discuss WAEC 1995
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