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 111: Trace elements are required by plants mainly for the Options:
  A) formation of pigments and enzymes
  B) production of energy and hormones
  C) manufactured of carbohydrates
  D) manufacture of proteins
  Show Answer
  The correct answer is A .
• Question 112: The reproductive system of a male mammal is made up of Options:
  A) claspers, prostrate, gland, sperm duct and vas deferens
  B) testis, prostrate gland, sperm duct and vas deferens
  C) oviduct, urethra, testis and sperm duct
  D) testis, uterus, prostrate gland and sperm duct
  Show Answer
  The correct answer is B .
• Question 113: Coloration of the eye is ______ variation Options:
  A) physiological
  B) morphological
  C) adaptive
  D) recessive
  Show Answer
  The correct answer is B .
• Question 114: The mineral nutrient that easily gets leached out of the soil is Options:
  A) phosphorus
  B) calcium
  C) magnesium
  D) nitrate
  Show Answer
  The correct answer is D .
• Question 115: The division of a body into two equal halves along a longitudinal plane is called Options:
  A) bilateral symmetary
  B) transverse section
  C) radial symmetry
  D) longitudinal section
  Show Answer
  The correct answer is A .
• Question 116:

  Most fishes do not sink in water because of the presences of:
  I. swim bladder
  II. air bladder
  III. air sacs
  IV. air in spongy bones

  Options:
  A) II and III are correct
  B) I and II are correct
  C) I, II, III and IV are correct
  D) III and IV are correct
  Show Answer
  The correct answer is B .
• Question 117:

  

  The type of placentation shown in the figure above is a

  Options:
  A) parietal
  B) marginal
  C) axile
  D) free-central
  Show Answer
  The correct answer is A .
• Question 118:

  Total salt content in blood is about

  Options:
  A) 1.85 to 1.9%
  B) 11.85 to 11.9%
  C) 2.85 to 2.9%
  D) 0.85 to 0.9%
  Show Answer
  The correct answer is D .
• Question 119: In mammals, the exchange of nutrients and metabolic products occurs in the Options:
  A) lymph
  B) lungs
  C) heart
  D) liver
  Show Answer
  The correct answer is A .
• Question 120:

  

  The bird's bill adapted for fishing is labelled

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is D .