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 731: Example of competitors are Options:
  A) lizard and mouse
  B) snake and lizard
  C) grasshopper and mouse
  D) rabbit and snake
  Show Answer
  The correct answer is B .
• Question 732:

  

  The substance labelled II originates from

  Options:
  A) III only
  B) IV only
  C) I and IV
  D) III and Iv
  Show Answer
  The correct answer is A .
• Question 733:

  

  Use the diagram above to answer this question. The male inflorescence is labelled

  Options:
  A) i
  B) ii
  C) iii
  D) iv
  Show Answer
  The correct answer is A .
• Question 734: Size, colour and fingerprints are examples of ______ Options:
  A) physiological variation
  B) discontinuous variation
  C) morphological variation
  D) adaptive variation
  Show Answer
  The correct answer is C .
• Question 735: What organelle is the site of photosynthesis in plants? Options:
  A) Chloroplasts
  B) Ribosomes
  C) Cytoplasm
  D) Mitochondria
  Show Answer
  The correct answer is A .
• Question 736: A surprising fact about sickle cell disease is that it Options:
  A) affects only black people
  B) kills the patient
  C) is hereditary
  D) affects blood cells
  E) weakens the patient
  Show Answer
  The correct answer is C .
• Question 737:

  Sources of air pollutants are

  Options:
  A) industrial chimneys, burning fossil oils and river dams
  B) sulphurdioxide, acid rain and pesticides
  C) sulphur dioxide, vehicle exhausts, and aerosols
  D) sewage,smoke and old vehicles
  Show Answer
  The correct answer is C .
• Question 738:

  The blood vessel which carries blood from the alimentary canal to the liver is the?

  Options:
  A) hepatic artery
  B) hepatic vein
  C) hepatic portal vein
  D) mesenteric artery
  Show Answer
  The correct answer is C .
• Question 739: The hormones which regulates the amount of glucose in the blood is called Options:
  A) adrenalin
  B) auxin
  C) insulin
  D) thyroxine
  Show Answer
  The correct answer is C .
• Question 740: Which of the following elements are necessary for the formation of chlorophyll in a plant? Options:
  A) magnesium and iron
  B) Calcium and potassium
  C) Calcium and sulphur
  D) Potasium and sulphur
  E) Phosphorus and potassium
  Show Answer
  The correct answer is A .