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: The greatest amount of energy will be obtained by the oxidation of 100kg of Options:
  A) meat
  B) butter
  C) sugar
  D) biscuits
  Show Answer
  The correct answer is B .
• Question 22: Which of the following ions is involved in the conduction of the nerve impulse? Options:
  A) Ca²⁺
  B) K⁺
  C) H⁺
  D) Mg²⁺
  Show Answer
  The correct answer is B .
• Question 23:

  

  Which parts provide food for the developing chick?

  Options:
  A) 2 and 3
  B) 4 and 5
  C) 3 and 4
  D) 2 and 5
  E) 1 and 2
  Show Answer
  The correct answer is C .
• Question 24: Which of the following is a feature of the population pyramid of a developing country? Options:
  A) long lifespan
  B) low birth rate
  C) low death rate
  D) short lifespan
  Show Answer
  The correct answer is C .
• Question 25: The respiratory organ in the land snail is the Options:
  A) radula
  B) mantle
  C) tentacle
  D) foot
  Show Answer
  The correct answer is D .
• Question 26: The theory of natural selection was developed by Options:
  A) Lamarck and Darwin
  B) Darwin and Wallace
  C) Wallace and Mendel
  D) Mendel and Larmack
  Show Answer
  The correct answer is B .
• Question 27:

  The organic molecule(s) present in the nucleus is/are

  Options:
  A) DNA
  B) Protein, DNA, RNA
  C) ATP and RNA
  D) RNA
  Show Answer
  The correct answer is A .
• Question 28: The first four children of a couple were all girls. The probability that the fifth will also be a girl is Options:
  A) 1/5
  B) 1/4
  C) 1/3
  D) 1/2
  Show Answer
  The correct answer is D .
• Question 29: Which of the following is a polysaccharide? Options:
  A) Glucose
  B) Sucrose
  C) Maltose
  D) Cellulose
  Show Answer
  The correct answer is D .
• Question 30:

  I. Rattusrattus. Il. Agama agama III. Bufo regularis IV. Tilapiazillii
  The order of evolutionary advancement of the above vertebrates is?

  Options:
  A) I, II, III, IV
  B) I, IV, III, II
  C) II, III, IV, I
  D) IV, III, II, I
  Show Answer
  The correct answer is D .