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 11: Flame cells are the Options:
  A) excretory system of worms
  B) excretory and respiratory systems of flatworms
  C) secretory syustem of flatworms
  D) excretory system of flatworms
  Show Answer
  The correct answer is D .
• Question 12: Which of the following hormones is produced during fright or when agitated? Options:
  A) Insulin
  B) Adrenalin
  C) Thyroxine
  D) Pituitrin
  E) Progesterone
  Show Answer
  The correct answer is B .
• Question 13:

  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 14:

  Which of the following statements best describes courtship behaviors in animals?

  Options:
  A) Courtship behaviors are solely performed by males to establish dominance within a social group
  B) Courtship behaviors involve displays and rituals performed by both males and females to attract a mate
  C) Courtship behaviors are primarily performed by females to attract males for mating
  D) Courtship behaviors are aggressive interactions between males competing for a female mate
  Show Answer
  The correct answer is B .
• Question 15:

  

  What would happen if solution Y is more concentrated than solution X in the figure above?

  Options:
  A) the level of X would rise, Y would fall
  B) the level of X would rise Y would rise
  C) The level of X and Y would stay the same
  D) The level of Y would rise and X would fall
  E) The levels of Y would fall and X would fall
  Show Answer
  The correct answer is D .
• Question 16: In an ecosystem, animals which feed directly on plants are called Options:
  A) secondary consumers
  B) primary consumers
  C) producers
  D) predators
  Show Answer
  The correct answer is B .
• Question 17: Which of the following is a homostatic response in humans? Options:
  A) Withdrawing the hand from a hot object
  B) The mouth getting watery when food is sighted
  C) yawning owing to tiredness
  D) shivering in a cold environment
  Show Answer
  The correct answer is D .
• Question 18:

  

  The neural arch is labelled

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is B .
• Question 19: In fish the sense organs which detect movements in water are located within the Options:
  A) gills
  B) operculum
  C) nostrils
  D) median fin
  E) lateral line
  Show Answer
  The correct answer is E .
• Question 20:

  Use the table below to answer the question.

  High relative humidity will be expected in Zones

  Options:
  A) ii and iv
  B) ii and iii
  C) i and iii
  D) i and iv
  Show Answer
  The correct answer is B .