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 741: The origin of mineral particles in the soil is Options:
  A) humus
  B) water
  C) micro-organisms
  D) weathered rock
  E) organic matter
  Show Answer
  The correct answer is E .
• Question 742: Which of the following characters is NOT sex-linked? Options:
  A) Albinism
  B) Baldness
  C) Haemophilia
  D) Colour blindness
  Show Answer
  The correct answer is A .
• Question 743: The term 'Thyllophyta'refers to Options:
  A) ferns and mosses
  B) algae and fungi
  C) mosses and liverworts
  D) fungi and ferns
  Show Answer
  The correct answer is B .
• Question 744: A pollutant that is mostly associated with acid rain is Options:
  A) Nitrogen (IV) Oxide
  B) Ozone
  C) Fluorine
  D) Carbon (IV) Oxide
  Show Answer
  The correct answer is A .
• Question 745: The mammalian endocrine system is responsible for Options:
  A) transmitting impulse
  B) regulating body temperature
  C) regulating osmotic pressure of blood
  D) chemical co-ordination
  E) the manufacture of blood
  Show Answer
  The correct answer is D .
• Question 746: The lungs of the lung fish is an adaptation for respiration _______? Options:
  A) to complement gills while in water
  B) to complement gills while on land
  C) while on land
  D) while in water
  Show Answer
  The correct answer is D .
• Question 747:

  Which of the following is NOT regarded as a pollutanton land or in the air?

  Options:
  A) Smoke
  B) Nitrogen
  C) Noise
  D) Sulphur dioxide
  Show Answer
  The correct answer is B .
• Question 748:

  One of the functions of the xylem is?

  Options:
  A) strengthening the stem
  B) manufacturing food
  C) reducing loss of water
  D) conducting manufactured food
  Show Answer
  The correct answer is A .
• Question 749: A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as Options:
  A) discontinuous variation
  B) continuous variation
  C) a mutant
  D) a genome
  Show Answer
  The correct answer is B .
• Question 750: If the gall bladder of a mammal is damaged, which of the following will be most seriously affected? Options:
  A) Glycolysis
  B) Digestion of starch
  C) Digestion of fats and oil
  D) Digestion of proteins
  Show Answer
  The correct answer is C .