Biology Exam Past Questions and Answers | JAMB, WAEC and NECO

Biology is the study of life and living things. It can be divided into different areas that look at the structure, function, anatomy, and behavior of organisms.

• Question 1971: Soil erosion CANNOT be controlled by Options:
  A) planting cover crops
  B) contouring of sloping ground
  C) terracing of slopes
  D) laying of mulch
  E) burning of bush
  Show Answer
  The correct answer is E .
• Question 1972: Which of the following is an example of discontinuous variation observed in man? Options:
  A) Skin colours
  B) Tongue rolling
  C) Body weight
  D) Height
  Show Answer
  The correct answer is B .
• Question 1973:

  Which of the following food substances will produce a brick-red colour when warmed with Benedict's solution?

  Options:
  A) Glucose
  B) Starch
  C) Egg White
  D) Maltose
  Show Answer
  The correct answer is A .
• Question 1974:

  Which of the following mechanisms is responsible for providing support in plants?

  Options:
  A) Muscles and bones
  B) Exoskeleton
  C) Endocrine system
  D) Cell walls and turgor pressure
  Show Answer
  The correct answer is D .
• Question 1975: A state in Nigeria that is most susceptible to desert encroachment is Options:
  A) Kwara
  B) Taraba
  C) Kaduna
  D) Katsina
  Show Answer
  The correct answer is D .
• Question 1976: In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because Options:
  A) it is produced by green plants during photosynthesis
  B) it is produced during respiration of animals
  C) it is absorbed inn ocean water
  D) green plants release it during the day
  Show Answer
  The correct answer is B .
• Question 1977: Root hairs are developed from the Options:
  A) root apex
  B) epidermis of root
  C) vascular bundles
  D) endodermis
  E) pericycle
  Show Answer
  The correct answer is B .
• Question 1978:

  

  The gas occupying the space labelled I is

  Options:
  A) carbon (IV) oxide
  B) nitrogen
  C) hydrogen
  D) oxygen
  Show Answer
  The correct answer is D .
• Question 1979: The lungs of the lung fish is an adaptation for respiration _______? Options:
  A) to complement gills while in water
  B) to complement gills while on land
  C) while on land
  D) while in water
  Show Answer
  The correct answer is D .
• Question 1980: Movements and positions of the head in man are detected by the Options:
  A) cochlea
  B) malleus
  C) utriculus
  D) semicircular canals
  E) outer ear
  Show Answer
  The correct answer is D .