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 241:

  

  Use the diagram above to answer this question.

  Emulsification of fats takes place in the part labelled

  Options:
  A) l
  B) ll
  C) lll
  D) lV
  Show Answer
  The correct answer is D .
• Question 242:

  Cold blooded animals are referred to as

  Options:
  A) Poikilothermic
  B) Homothermic
  C) Polythermic
  D) Homeostatic
  Show Answer
  The correct answer is A .
• Question 243: The center which controls respiratory activities the mammalian brain is the Options:
  A) cerebrum
  B) olfactory lobe
  C) pituitary organ
  D) cerebellum
  E) medulla
  Show Answer
  The correct answer is E .
• Question 244: An increase in air pressure in the lungs is due to the Options:
  A) increase in the volume of the thoracic cavity
  B) upward movement of he ribs
  C) relaxation of the diaphragm
  D) contraction of the intercostal musles
  Show Answer
  The correct answer is C .
• Question 245: Soil fertility can be conserved and renewed by Options:
  A) yearly monocropping
  B) crop rotation and cover crops
  C) bush burning to remove unwanted debris
  D) avoiding artificial manures
  Show Answer
  The correct answer is B .
• Question 246: Which of the ways of controlling bilharzia can result in pollution? Options:
  A) clearing water weeds on which the snail feed
  B) Treating infected people with drugs
  C) Preventing contamination of water by infected urine and faeces
  D) Applying chemical to kill the snails
  Show Answer
  The correct answer is D .
• Question 247: Which is the correct order of water loss from the leaf? 1 Mesophyll 2 Veins 3 Substomatals cavity 4 Stomata Options:
  A) 3 → 2 → 1 → 4
  B) 2 → 3 → 1 → 4
  C) 2 → 1 → 3 → 4
  D) 1 → 2 → 3 → 4
  Show Answer
  The correct answer is C .
• Question 248:

  Which of the following is not a transmitable character in plants

  Options:
  A) Habit of growth
  B) Resistance to environmental factors
  C) Life span
  D) Haemophilia
  Show Answer
  The correct answer is D .
• Question 249:

  The hormones secreted by pancreas serves to

  Options:
  A) Facilitate the development of facial hairs
  B) Raise the level of calcium in the blood
  C) Lower blood glucose level
  D) Make the body react to emergencies
  Show Answer
  The correct answer is C .
• Question 250: One of the following statement is not true of viruses Options:
  A) They are micro-organisms
  B) They are smaller than bacteria
  C) They can be seen with an ordinary light microscope
  D) They cause tobacco disease
  E) They cause polio and smallpox
  Show Answer
  The correct answer is C .