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 1: Floating microscopic heterotrophs are mostly grouped as Options:
  A) phytoplankton
  B) zooplankton
  C) microbes
  D) nekton
  Show Answer
  The correct answer is B .
• Question 2: Which of the following is used mainly for balancing in fish? Options:
  A) the caudal fin
  B) the pectoral fin
  C) the anal fin
  D) the dorsal fin
  Show Answer
  The correct answer is D .
• Question 3: The ability of a living organism to detect and respond to changes in the environment is referred to as Options:
  A) locomotion
  B) taxis
  C) irritability
  D) growth
  Show Answer
  The correct answer is C .
• Question 4: ONE of the major causes of haemophilia is lack of Options:
  A) firbrinogen
  B) amylase
  C) white blood corpuscles
  D) red blood corpuscles
  E) plasma
  Show Answer
  The correct answer is A .
• Question 5: Which one of the following animals is NEVER a secondary host of tapeworms? Options:
  A) cow
  B) Fish
  C) Pig
  D) Man
  E) Dog
  Show Answer
  The correct answer is D .
• Question 6:

  

  Use the diagram above to answer this question.

  The structure that controls loss of water vapour during transpiration is labelled

  Options:
  A) l
  B) ll
  C) lll
  D) lV
  Show Answer
  The correct answer is D .
• Question 7:

  In a population of living things, the parameters of size, height, weight and colours are examples of

  Options:
  A) continuous variation
  B) non-heritable variation
  C) discontinuous variation
  D) physiological variation
  Show Answer
  The correct answer is A .
• Question 8: Thyroxine and adrenalin are examples of hormones which control Options:
  A) blood grouping
  B) tongue rolling
  C) behavioural patterns
  D) colour variation
  Show Answer
  The correct answer is C .
• Question 9:

  Use the diagram to answer the question.

  The type of protective adaption exhibited by the animal is

  Options:
  A) disruptive colouration
  B) flash colouration
  C) countershading colouration
  D) warning colouration
  Show Answer
  The correct answer is C .
• Question 10: When a colour-blind man marries a carrier woman. What is the probability of their offspring being colour blind? Options:
  A) 25%
  B) 50%
  C) 75%
  D) 100%
  Show Answer
  The correct answer is B .