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 701: The following are examples of air borne diseases, except Options:
  A) Chicken pox
  B) Cholera
  C) common cold
  D) Whooping cough
  Show Answer
  The correct answer is B .
• Question 702: The extract from food substance reacting with sodium hydroxide and copper sulphate solutions will produce violet to purple coloration if Options:
  A) fats are presents
  B) carbohydrate is present
  C) protein is present
  D) reducing sugar is presents
  Show Answer
  The correct answer is C .
• Question 703: Red coloration on the head of a male lizard helps it to Options:
  A) mark is territory
  B) camouflage in the enviroment
  C) secure its mate
  D) defend itself
  Show Answer
  The correct answer is C .
• Question 704: The major function of the swim-bladder in fishes is Options:
  A) breathing
  B) buoyancy
  C) swimming
  D) diving
  Show Answer
  The correct answer is B .
• Question 705: The first four children of a couple were all girls. The probability that the fifth will also be a girl is Options:
  A) 1/5
  B) 1/4
  C) 1/3
  D) 1/2
  Show Answer
  The correct answer is D .
• Question 706: The organ which secretes digestive enzymes as well as hormones is the Options:
  A) liver
  B) salivary gland
  C) pancreas
  D) spleen
  Show Answer
  The correct answer is C .
• Question 707: The irreversible life process by which new protoplasm is added to increase the size and weight of an organism can be termed Options:
  A) anabolism
  B) catabolism
  C) growth
  D) development
  Show Answer
  The correct answer is C .
• Question 708: A characteristic that can possibly be shared by both living and non living organisms is Options:
  A) locomotion
  B) irritability
  C) increase in biomass
  D) increase in size
  Show Answer
  The correct answer is C .
• Question 709: The stunted growth of a leguminous plant suffering from nitrogen deficiency may be corrected by inoculating the soil with Options:
  A) denitrifying bacteria
  B) Saprophytic bacteria
  C) Rhizobium
  D) Nitrosomonas
  Show Answer
  The correct answer is C .
• Question 710: Which of the following is true of small pox? Options:
  A) It is transmitted by bacteria
  B) It can effectively be controlled with antibiotics
  C) It can effectively be controlled by vaccination
  D) It is a water-borne infection
  Show Answer
  The correct answer is C .