Waec 2018 Biology Past Questions And Answers

Note: You Can Select Post UTME Schools Name Below The Exam Year.
1

The diagram below is an illustration of an experimental set-up to demonstrate a property of soil. The property of soil demonstrated is

  • A. particle size
  • B. capillarity
  • C. colour
  • D. texture
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2

Which of the following disease is caused by a bacterium?

  • A. ringworm
  • B. poliomyelitus
  • C. syphilis
  • D. malaria
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3

Which of the following statements would be a correct observation at the end of the experiment? Water moves

  • A. highest in sandy soil
  • B. lowest in loamy soil
  • C. to the same level in all soil types
  • D. highest in clayey soil
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4

Xerophytes have the following characteristics aimed at conserving water except

  • A. thick cuticle
  • B. broad leaf surfaces
  • C. sunken stomata
  • D. waxy cuticle
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5

What level of organization is Spirogyra?

  • A. System
  • B. Organ
  • C. Cell
  • D. Tissue
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6

The most important factor(s) that influence(s) the ecological niche of an organism is/ are the

  • A. water, light and predator-prey relationship
  • B. food and water availability
  • C. physical environment
  • D. competition for food and space
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7

(a). Explain briefly the following terms:

(i) Renewable natural resources

(ii) Non -renewable natural resources;

(b) Give two examples each of:

(i) Renewable natural resources

(ii) Non -renewable natural resources

(c) State five ways of conserving forests

(d) State four effects of adding animal manure to garden soil.

(e) Give the possible genotypes in humans;

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8

Which of the following instruments is used to determine the turbidity of water?

  • A. hygrometer
  • B. hydrometer
  • C. secchi disc
  • D. rain gauge
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9

The source of energy required by plants during food production is

  • A. Photosynthesis
  • B. Chlorophyll
  • C. Sunlight
  • D. Microorganisms
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10

(a) Explain briefly how the structure of each of the following cells relate to their functions:

(i) Sperm cell

(ii) Palisade cell.

(b) Make a drawing, 8cm to -10cm long of the front view of the female reproductive system in humans and label fully.

(c) State two differences between reproduction in mammals and in amphibians.

(d) State two methods of birth control in humans.

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