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 131:

  What is the primary function of the liver in the human body?

  Options:
  A) Regulation of body temperature
  B) Regulation of blood pressure
  C) Production of hormones
  D) Detoxification and metabolism of nutrients and drugs
  Show Answer
  The correct answer is D .
• Question 132: The type of nutrition exhibited when organism lives on the body surface or inside the body of another type of organism is Options:
  A) Holozoic
  B) parasitic
  C) saprohytic
  D) carnivores
  Show Answer
  The correct answer is B .
• Question 133:

  Which of these combinations is common to plant and animal cells?

  Options:
  A) Centriole, middle lamella, golgi bodies, mitrochondrion
  B) Cytoplasm, sap, vacuole, starch grains, leucoplasts
  C) Plasma membranes, chromosomes, mitochondria, lysosomes.
  D) Nucleus, nucleolus, cellulose cell wall, endoplasmic reticulum
  E) Cytoplasm, centriole, cellulose cell wall, nucleolus
  Show Answer
  The correct answer is C .
• Question 134: The blood circulatory system of vertebrates consists of Options:
  A) heart, arteries, capillaries and veins
  B) heart, aorta, capillaries and veins
  C) heart, aorta, arteries and veins
  D) heart, vena cava, arteries, and veins
  Show Answer
  The correct answer is A .
• Question 135: If the cross of a red-flowered plant with a white-flowered plant produces a pink-flowered plant, it is an example of Options:
  A) codominance
  B) incomplete dominance
  C) mutation
  D) linkage
  Show Answer
  The correct answer is B .
• Question 136:

  In an agricultural ecosystem, the biotic component consist of

  Options:
  A) crops, pests and beneficial insects
  B) crops, temperature and humidity
  C) pests, beneficial insects and water
  D) crops, water and soil
  Show Answer
  The correct answer is A .
• Question 137: Mineral salts can be absorbed into the roots by Options:
  A) osmosis only
  B) osmosis and diffusion
  C) diffusion and active transport
  D) imbibition only
  Show Answer
  The correct answer is C .
• Question 138: Which of the following will not allow osmosis to take place Options:
  A) pig's bladder
  B) cellophane
  C) parchment paper
  D) transparent polythene
  E) cow's bladder
  Show Answer
  The correct answer is D .
• Question 139: Which vitamin plays an important role in blood clotting? Options:
  A) vitamin A
  B) Vitamin K
  C) Vitamin B₁₂
  D) Vitamin C
  Show Answer
  The correct answer is B .
• Question 140:

  A population is best described as

  Options:
  A) A group of the same species of organisms living together
  B) A group of animals and plants living together
  C) A group of insects and grasses
  D) Different species of wild animals
  Show Answer
  The correct answer is A .