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 121: The growth of a coleoptile towards unilateral light source is due to Options:
  A) rapid rate of photosynthesis
  B) unequal distribution of auxin
  C) the effect of geotropism
  D) the effect of photolysis
  Show Answer
  The correct answer is B .
• Question 122: Which of the following adaptations is NOT concerned with the flight of birds? Options:
  A) Streamlined shape
  B) Presence of powerful muscles
  C) Reduced body weight
  D) Broad sternum
  E) Webbed feet
  Show Answer
  The correct answer is E .
• Question 123: The parts of the mammalian eye that strongly bend light rays are the Options:
  A) cornea and the lens
  B) cornea and aqueous humour
  C) cornea and vitreous humour
  D) lens and aqueous humour
  E) lens and vitreous humour
  Show Answer
  The correct answer is E .
• Question 124: The organs that will be most useful to giant African rats in finding their way in underground habitats are the Options:
  A) vibrissae
  B) nostrils
  C) eyes
  D) tails
  Show Answer
  The correct answer is A .
• Question 125: The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with Options:
  A) denitrifying bacteria
  B) Saprophytic bacteria
  C) Rhizobium
  D) Nitrosomonas
  Show Answer
  The correct answer is C .
• Question 126: In most true ferns sporangia are grouped into Options:
  A) indusium
  B) fronds
  C) prothalli
  D) sari
  Show Answer
  The correct answer is D .
• Question 127: Which of the following pairs are social insects? Options:
  A) Termite and locust
  B) Ants and wap
  C) Cockroach and bee
  D) Termite and bee
  Show Answer
  The correct answer is D .
• Question 128:

  Which of the following is NOT regarded as a pollutanton land or in the air?

  Options:
  A) Smoke
  B) Nitrogen
  C) Noise
  D) Sulphur dioxide
  Show Answer
  The correct answer is B .
• Question 129: In the whistling pine, leaves are reduced to brown scales and young stems are green. This is an adaptation for Options:
  A) obtaining food
  B) conserving nutrients
  C) storing water
  D) reducing transpiration
  Show Answer
  The correct answer is D .
• Question 130: The function of maxillipeds in crayfish is to aid Options:
  A) walking
  B) swimming
  C) feeding
  D) respiration
  Show Answer
  The correct answer is C .