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 2121: Choose the sequence which represents the correct order of organisms in a food chain. Options:
  A) Grass, snake, toad, grasshopper, hawk
  B) Grass, grasshopper, toad, snake, hawk
  C) Grass, grasshopper, snake, toad, hawk
  D) Grass, snake, grasshopper, toad, hawk
  E) Grass, toad, snake, grasshopper, hawk
  Show Answer
  The correct answer is B .
• Question 2122:

  Which of the following is an example of an adaptation for survival in social insects?

  Options:
  A) Migration to warmer climates
  B) Production of venom for defense
  C) Formation of complex caste systems
  D) Hibernation during winter months
  Show Answer
  The correct answer is C .
• Question 2123: In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to Options:
  A) prevent alga growth in culture solution
  B) allow root growth
  C) prevent breakdown of mineral elements
  D) prevent photosynthesis in the root
  Show Answer
  The correct answer is A .
• Question 2124: Countershading is an adaptive feature that enables animals to Options:
  A) fight enemies
  B) remain undetected
  C) warn enemies
  D) attract mates
  Show Answer
  The correct answer is B .
• Question 2125: The following are examples of air borne diseases, except Options:
  A) Chicken pox
  B) Cholera
  C) common cold
  D) Whooping cough
  Show Answer
  The correct answer is B .
• Question 2126: Which of the following is not part of the mammalian male reproductive organ? Options:
  A) Epididymis
  B) Vas deferens
  C) testis
  D) Vulva
  Show Answer
  The correct answer is D .
• Question 2127: The nitrogenous substance that is excreted by birds in order to conserve water is Options:
  A) ammonia
  B) urea
  C) uric acid
  D) nitric acid
  Show Answer
  The correct answer is C .
• Question 2128: If calcium is deficient in food this may cause Options:
  A) anaemia
  B) retarded growth
  C) sterility
  D) goitre
  E) beri-beri
  Show Answer
  The correct answer is B .
• Question 2129: The major function of the swim-bladder in fishes is Options:
  A) breathing
  B) buoyancy
  C) swimming
  D) diving
  Show Answer
  The correct answer is B .
• Question 2130: Which of the following is an adaptation of forest species? Options:
  A) Few stomata
  B) Thick bark
  C) Buttress roots
  D) Reduced leaves
  Show Answer
  The correct answer is C .