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 2101:

  

  The figure above shows diagram for the correction of shortsightedness. If the unbroken lines represents light rays from the object and the broken lines the refracted rays through the lens, which of these is correct

  Options:
  A) A
  B) B
  C) C
  D) D
  E) E
  Show Answer
  The correct answer is D .
• Question 2102: The supporting tissue in xylem is most poorly developed in Options:
  A) mangrove swamp plants
  B) grassland plants
  C) submerged water plants
  D) desert plants
  Show Answer
  The correct answer is C .
• Question 2103: The ability of the eye to focus on both near and distant objects is termed Options:
  A) image formation
  B) refraction
  C) hypermetropia
  D) Accomodation
  Show Answer
  The correct answer is D .
• Question 2104: Which of the following is lacking in the diet of a person with kwashiorkor? Options:
  A) proteins
  B) carbohydrates
  C) minerals
  D) vitamins
  Show Answer
  The correct answer is A .
• Question 2105: If X^N is the dominant allele for normal vision and Xⁿ the recessive allele for colour blindness, a boy with the genotype YXⁿ will be Options:
  A) have normal vision
  B) be colour-blind
  C) be totally blind
  D) be a carrier of colour blindness
  Show Answer
  The correct answer is B .
• Question 2106: Which of the following disease is not sexually transmitted? Options:
  A) Gonorrhea
  B) Herpes
  C) Influenza
  D) Syphilis
  Show Answer
  The correct answer is C .
• Question 2107: Which of the following is a homostatic response in humans? Options:
  A) Withdrawing the hand from a hot object
  B) The mouth getting watery when food is sighted
  C) yawning owing to tiredness
  D) shivering in a cold environment
  Show Answer
  The correct answer is D .
• Question 2108:

  The greatest influence on a stable ecosystem in nature is exerted by

  Options:
  A) man
  B) pollution
  C) animals
  D) rainfall
  Show Answer
  The correct answer is A .
• Question 2109: Which of the following is a plant excretory product? Options:
  A) Oil
  B) Cytokinin
  C) Resin
  D) Amino acids
  Show Answer
  The correct answer is C .
• Question 2110: Gregor Mendel is regarded as the father of ______ Options:
  A) variation
  B) genetics
  C) mycology
  D) natural selection
  Show Answer
  The correct answer is B .