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 311: The vitamin which is important in the formation of the retina pigment is Options:
  A) vitamin A
  B) vitamin B
  C) vitamin C
  D) vitamin D
  Show Answer
  The correct answer is A .
• Question 312: The sequence of ear ossicles from the fenestra ovalis is Options:
  A) malleus, incus and stapes
  B) malleus, stapes and incus
  C) stapes, incus and malleus
  D) stapes, malleuls and incus
  Show Answer
  The correct answer is C .
• Question 313:

  Which of the following waste products in plants is excreted through the stomata and lenticles?

  Options:
  A) carbon dioxide
  B) alkaloids
  C) tannins
  D) anthoocyanins
  Show Answer
  The correct answer is A .
• Question 314: One distinctive feature in the life history of liverworts is that they exhibit Options:
  A) Alternation of generation
  B) Vegetative reproduction
  C) Asexual reproduction
  D) Sexual reproduction
  Show Answer
  The correct answer is A .
• Question 315: Which of the following substance is not found in urine? Options:
  A) Water
  B) Sodium chloride
  C) Nitrogenous compounds
  D) Calcium chloride
  E) Nitrogenous salts
  Show Answer
  The correct answer is D .
• Question 316: The scarcity of food causes a sudden decrease in population size by Options:
  A) decreasing the reproductive rate
  B) bringing about immigration
  C) raising the mortalility rate
  D) minimizing the rate of competition
  Show Answer
  The correct answer is C .
• Question 317: The plants that grow in deserts or very dry areas are referred to as Options:
  A) mesophytes
  B) hydrophytes
  C) epiphytes
  D) xerophytes
  Show Answer
  The correct answer is D .
• Question 318:

  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 .
• Question 319: Two main distinguishing features of the cervical vertebra are the presence of Options:
  A) short neural spine and vertebraterial canal
  B) prozygapophysis and cervical ribs
  C) large centrum and cervical ribs
  D) vertebraterial canal and large centrum
  Show Answer
  The correct answer is A .
• Question 320: Which of the following animals has homodont dentition? Options:
  A) Rat
  B) Man
  C) Lizard
  D) Pigeon
  Show Answer
  The correct answer is C .