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 1: Which of the following structural features are adapted for uses other than water conservation? Options:
  A) Succulent stems
  B) Scales in animals
  C) Spines in plants
  D) Feathers in birds
  Show Answer
  The correct answer is D .
• Question 2: When a person with blood belonging to group O has lost much blood due to an accident, he can be given blood from persons who have blood belonging to Options:
  A) group O only
  B) group A only
  C) group AB only
  D) groups A and O
  E) groups AB and O
  Show Answer
  The correct answer is A .
• Question 3: An instrument used in measuring the speed of wind is Options:
  A) a barometer
  B) a wind gauge
  C) a wind vane
  D) an anemometer
  E) a hydrometer
  Show Answer
  The correct answer is D .
• Question 4: Osmosis can be defined as the movement of Options:
  A) Molecules from solution of higher concentration to low concentration
  B) Molecules from solution of low concentration to high concentration
  C) Water from solution of high concentration to low concentration
  D) Water across a semi-permeable membrane from solution of low concentration to high concentration
  E) Water across a semi-permeable membrane from solution of high concentration to low concentration
  Show Answer
  The correct answer is E .
• Question 5: The basic point of impact by changes which produce mutation is the Options:
  A) gametes
  B) chromosomes
  C) phenotype
  D) zygote
  Show Answer
  The correct answer is B .
• Question 6: The breaking down of food in the alimentary canal is called Options:
  A) digestion
  B) egestion
  C) excretion
  D) ingestion
  Show Answer
  The correct answer is A .
• Question 7: The blood circulatory system of vertebrates consists of Options:
  A) heart, arteries, capillaries and veins
  B) heart, aorta, capillaries and veins
  C) heart, aorta, arteries and veins
  D) heart, vena cava, arteries, and veins
  Show Answer
  The correct answer is A .
• Question 8:

  Which of the following is NOT a part of the alimentary canal?

  Options:
  A) Oesophagus
  B) Large intestine
  C) Liver
  D) Small intestine
  Show Answer
  The correct answer is C .
• Question 9: The adaptive importance of nuptial flight from termite colonies is to Options:
  A) disperse the reproductives in order to establish new colonies
  B) provide abundant food for birds and other animals during the early rains
  C) ensure cross-breeding between members of one colony and another
  D) expel the reproductives so as to provide enogh food for other members
  Show Answer
  The correct answer is A .
• Question 10: Which of the following lists of diseases, their causes and transmission is CORRECT? Options:
  A) Cholera, virus, severe diarrhoea, infected water
  B) Malaria, protozoan, high fever, contact with infected person
  C) Syphilis, virus, veneral disease, sexual intercourse
  D) small pox, virus, skin with blister, close contact with infected person
  E) Sleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite
  Show Answer
  The correct answer is D .