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 21:

  

  A function of the part labelled II is to

  Options:
  A) equalize pressure on both sides of the tympanum
  B) conduct sound waves to the brain
  C) help the animal maintain balance or posture
  D) transform sound waves into electric impulses
  Show Answer
  The correct answer is A .
• Question 22: Groundnut is not really a 'nut' in the biological sense because Options:
  A) it is harvested from inside the ground
  B) pericarp is not hard and tough
  C) the fruit is not as hard as coconut
  D) the fruit is not succulent
  E) it is an achene
  Show Answer
  The correct answer is B .
• Question 23: In rhizopus carbohydrate is stored in the form of Options:
  A) Glucose
  B) Paramylon
  C) Glycogen
  D) Starch
  E) Oil
  Show Answer
  The correct answer is C .
• Question 24: The excretory structure in the earthworm is the Options:
  A) malpighian tubule
  B) flame cell
  C) nephridium
  D) kidney
  Show Answer
  The correct answer is C .
• Question 25: Most commercial fertilizers are rich in salts of Options:
  A) sodium, iron and calcium
  B) nitrogen, phosphorus and potassium
  C) iron, copper and nitrogen
  D) calcium, sodium and phosphorus
  Show Answer
  The correct answer is B .
• Question 26:

  

  Which part of the twig produces auxins?

  Options:
  A) 4
  B) 3
  C) 2
  D) 1
  Show Answer
  The correct answer is D .
• Question 27: The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if Options:
  A) fats are presents
  B) carbohydrate is present
  C) protein is present
  D) reducing sugar is presents
  Show Answer
  The correct answer is C .
• Question 28: Which of the following relates to edaphic factors? Options:
  A) The structure of the earth's surface
  B) The influence of living organisms on each other
  C) Temperature, rainfall and humidity
  D) The influence of soils on plant and animals
  Show Answer
  The correct answer is D .
• Question 29:

  Which of the following statements is true regarding sex-linked traits?

  Options:
  A) Sex-linked traits are located on the sex chromosomes
  B) Sex-linked traits are inherited only from the mother
  C) Sex-linked traits are more commonly observed in females
  D) Sex-linked traits are not influenced by hormonal factors
  Show Answer
  The correct answer is A .
• Question 30:

  Which type of reproduction involves the fusion of gametes from two parents?

  Options:
  A) Sexual reproduction
  B) Asexual reproduction
  C) Binary fission
  D) Budding
  Show Answer
  The correct answer is A .