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 241: How many nuclei are found in pollen tube during fertilization? Options:
  A) 2
  B) 3
  C) 5
  D) 6
  E) 7
  Show Answer
  The correct answer is B .
• Question 242: The habitat of the cysticercus of taenia solium is Options:
  A) Alimentary canal of cattle
  B) Muscles of pig
  C) Alimentary canal of pig
  D) Muscles of cattle
  Show Answer
  The correct answer is B .
• Question 243: A group of organisms of different species living in a particular area is described as a Options:
  A) colony
  B) community
  C) population
  D) niche
  Show Answer
  The correct answer is B .
• Question 244: A constituent of the exhaust fumes from electricity generating sets which causes serious pollution is Options:
  A) Carbon (II) Oxide
  B) Water Vapour
  C) Ozone
  D) Carbon (IV) Oxide
  Show Answer
  The correct answer is A .
• Question 245:

  

  The lime water in container B turned milky because

  Options:
  A) carbon dioxide was produced by plant
  B) during respiration carbon dioxide entered C
  C) oxygen reacts with lime water to produce milkiness
  D) soda lime did not remove carbon dioxide from air
  E) the delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 246: The opening of the stoma is controlled by the Options:
  A) presence of a pore
  B) increase in solute concentration in the guard cells
  C) presence of guard cells
  D) decrease in solute concentration in the guard cells
  Show Answer
  The correct answer is B .
• Question 247: The inactive state exhibited by an animal during hot dry seasons is termed Options:
  A) Aestivation
  B) Dormancy
  C) Resting
  D) Hibernation
  Show Answer
  The correct answer is A .
• Question 248: Which of the following represents the evolutionary sequence in these plants? 1. Flowering plants 2. Ferns 3. Mosses 4. Algae 5. Conifers Options:
  A) 2 → 1 → 4 → 3 → 5
  B) 5 → 4 → 3 → 2 → 1
  C) 2 → 4 → 5 → 1 →3
  D) 3 → 2 → 4 → 5 → 1
  E) 4 → 3 → 2 → 5 → 1
  Show Answer
  The correct answer is E .
• Question 249:

  In the mammalian respiratory system. exchange of gases occurs in the?

  Options:
  A) lungs
  B) bronchi
  C) bronchioles
  D) alveoli
  Show Answer
  The correct answer is D .
• Question 250:

  The hormone which regulates the amount of glucose in the blood is called?

  Options:
  A) Adrenalin
  B) Auxin
  C) Insulin
  D) Thyroxine
  Show Answer
  The correct answer is C .