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 1211:

  Which of the following organs can be considered vestigial in humans but functional in other mammals

  Options:
  A) The liver
  B) Appendix
  C) Rectum
  D) Stomach
  Show Answer
  The correct answer is B .
• Question 1212:

  Which of the following traits is not visible in a person with Down syndrome?

  Options:
  A) Short neck
  B) High muscle tone
  C) Small stature
  D) Slant eyes
  Show Answer
  The correct answer is B .
• Question 1213: If the offspring of a cross between a brown mouse (bb) and a black mouse (BB) are allowed to interbreed, how many different genotypes would result? Options:
  A) 2
  B) 3
  C) 4
  D) 5
  Show Answer
  The correct answer is C .
• Question 1214: If a woman who is a carrier of sickle cell trait (AS) married a man who is a sickler (SS) and they had four children, how many of them would be normal? Options:
  A) Three
  B) Two
  C) One
  D) None
  Show Answer
  The correct answer is D .
• Question 1215: The process of deamination is essential for the Options:
  A) digestion of protein
  B) secretion of bile
  C) formation of urea
  D) formation of antibody
  Show Answer
  The correct answer is A .
• Question 1216:

  Which of the following is a behavioural adaptation that protects prey from predators?

  Options:
  A) Hibernation
  B) Shedding of leaves
  C) Secreting irritating fluid
  D) Dormancy
  Show Answer
  The correct answer is C .
• Question 1217:

  The greatest amount of energy would be obtained by the Oxidation of 100kg of

  Options:
  A) Meat
  B) Butter
  C) Sugar
  D) Biscuit
  Show Answer
  The correct answer is B .
• Question 1218:

  Which of the following statements is true regarding sexual reproduction in organisms?

  Options:
  A) It involves the fusion of gametes from two parents, resulting in offspring with genetic variation
  B) It involves the production of offspring through a single parent, resulting in genetically identical offspring
  C) It is a form of asexual reproduction where offspring are produced without the involvement of gametes
  D) It does not involve the formation of gametes or the fusion of reproductive cells
  Show Answer
  The correct answer is A .
• Question 1219:

  The number of plant species obtained from a population study of a garden is as follows: Guinea grass (15), Ipomoea spp (5), Sida spp (7) and Imperata spp (23)

  What is the percentage of occurrence of Imperataspp?

  Options:
  A) 35%
  B) 16%
  C) 46%
  D) 23%
  Show Answer
  The correct answer is C .
• Question 1220:

  Which of the following is an example of physiological variation in organisms?

  Options:
  A) Variation in blood pressure among individuals
  B) Variation in beak shape among finches
  C) Differences in fur color in rabbits
  D) Variation in leaf shape in plants
  Show Answer
  The correct answer is A .