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 231: The function of the red head in male Agama lizards is to Options:
  A) scare other males from the territory
  B) warn predators of the distastefulness of the animal
  C) attract female lizards for mating purposes
  D) conceal and camouflage the animal from predators
  Show Answer
  The correct answer is C .
• Question 232:

  People who suck petrol with their mouths run the risk of increasing in their blood the concentration of

  Options:
  A) iron
  B) lead
  C) calcium
  D) magnesium
  Show Answer
  The correct answer is B .
• Question 233: A freshwater pond may contain Options:
  A) tadpole, water boatman, leeches and crab
  B) water beetle, shrimps, water snail and water bug
  C) water lily, fish, water scorpion and dragon larva
  D) pon skater, water lily, shark and mosquito larva
  Show Answer
  The correct answer is C .
• Question 234: In the transverse section of the leaf of maize vascular bundles are arranged in Options:
  A) a row
  B) one circle
  C) alternate position
  D) two circles
  Show Answer
  The correct answer is B .
• Question 235:

  Mineral salts can be absorbed into roots by

  Options:
  A) Osmosis only
  B) Osmosis and diffusion
  C) Diffusion and active transport
  D) Imbition only
  Show Answer
  The correct answer is C .
• Question 236: The hereditary characters in plants and animals are located on the Options:
  A) gene
  B) mucleus
  C) chromosome
  D) cell
  Show Answer
  The correct answer is C .
• Question 237: The dental formula of a i(3/3); c(1/1); pm(4/4; m(2/3) = 42 represent that of a Options:
  A) rabbit
  B) full grown man
  C) young child
  D) dog
  E) sheep
  Show Answer
  The correct answer is D .
• Question 238: The gland directly affecting metabolic rate, growth and development is known as Options:
  A) adrenal land
  B) thyroid gland
  C) mammary gland
  D) parathyroid gland
  Show Answer
  The correct answer is B .
• Question 239: Which sequence represents the correct order of organisms un a food chain? 1. Toad 2. Mucuna 3. Grasshopper 4. Snake 5. Hawk Options:
  A) 5 → 4 → 1 → 3 → 2
  B) 1 → 2 → 3 → 4 → 5
  C) 2 → 1 → 3 → 4 → 5
  D) 2 → 3 →1 → 5 →4
  E) 2 → 3 → 1 → 4 → 5
  Show Answer
  The correct answer is E .
• Question 240: Which of the following is NOT true of wind-pollinated flowers? Options:
  A) A large amount of pollen produced
  B) Light smooth pollen grains
  C) Small inconspicuous flowers
  D) Scented petals
  E) Large pendulous anther
  Show Answer
  The correct answer is D .