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 51:

  Botany is also known as

  Options:
  A) Phytology
  B) Phycology
  C) Pedology
  D) Plantophyta
  Show Answer
  The correct answer is A .
• Question 52: 28 g soil sample was heated to a constant weight of 24 g. When further heated to red hot and cooled, it weighed 18 g. What is the percentage of humus in the soil? Options:
  A) 22.2
  B) 55.6
  C) 75.0
  D) 25.0
  E) 35.7
  Show Answer
  The correct answer is A .
• Question 53:

  

  The part labelled X is the

  Options:
  A) axon
  B) cell body
  C) terminal dendrites
  D) synapse
  Show Answer
  The correct answer is B .
• Question 54: A couple has 10 children, all female. Which of the following best explains the situation Options:
  A) The sex determination was by the man's X chromosome
  B) The man's sperm count is low
  C) The woman is not capable of producing male children
  D) The sex determination was by the man's Y chromosome
  Show Answer
  The correct answer is A .
• Question 55: Excess water in plants is excreted as water vapour and droplets respectively through Options:
  A) respiration and guttation
  B) transpiration and guttation
  C) photosynthesis and guttation
  D) guttation and condensation
  Show Answer
  The correct answer is B .
• Question 56: Which of the following is NOT a function of the liver? Options:
  A) Regulation of blood sugar
  B) Storage of iron
  C) Formation of bile
  D) Breakdown of excess amino acids
  E) Excretion of urea from the blood
  Show Answer
  The correct answer is E .
• Question 57: The interaction of a community of organisms with its abiotic environment constitutes Options:
  A) niche
  B) a food chain
  C) an ecosystem
  D) a mirohabitat
  Show Answer
  The correct answer is C .
• Question 58: Enzyme ptyalin acts on starch in the Options:
  A) oesophagus
  B) large intestine
  C) mouth
  D) stomach
  Show Answer
  The correct answer is C .
• Question 59: In Mucor or Rhizopus carbohydrate is absorb in the form of Options:
  A) starch
  B) sucrose
  C) glucose
  D) glycogen
  E) arabinose
  Show Answer
  The correct answer is C .
• Question 60: The phloem parenchyma is sometimes used for Options:
  A) food storage
  B) supporting the stem
  C) production of the sieve tube
  D) transporting water
  Show Answer
  The correct answer is A .