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 911: Bacteria in the large intestine of man are important in the Options:
  A) synthesis of vitamins K and B₂
  B) digestion of vegetables
  C) synthesis of vitamins A and D
  D) absorption of water
  Show Answer
  The correct answer is A .
• Question 912: Urea formation occurs in the Options:
  A) heart
  B) liver
  C) lung
  D) kidney
  Show Answer
  The correct answer is B .
• Question 913:

  Which process in the nutrient cycle converts atmospheric nitrogen into a form that plants can utilize?

  Options:
  A) Denitrification
  B) Nitrogen fixation
  C) Ammonification
  D) Nitrification
  Show Answer
  The correct answer is B .
• Question 914:

  

  In the diagram, the part labelled I represents the

  Options:
  A) base pairs
  B) ribose sugar
  C) phosphate linkage
  D) deoxyri-bose sugar
  Show Answer
  The correct answer is A .
• Question 915:

  The most abundant group of organisms in the animal kingdom?

  Options:
  A) Mammalia
  B) Aves
  C) Insecta
  D) Annelida
  Show Answer
  The correct answer is C .
• Question 916: The dental formula 13/3 c1/1 pm4/4 m2/3 is that of a Options:
  A) goat
  B) rabbit
  C) man
  D) dog
  Show Answer
  The correct answer is D .
• Question 917:

  Examples of animals with mammary glands include the following except

  Options:
  A) Cow
  B) Goat
  C) Pig
  D) Hen
  Show Answer
  The correct answer is D .
• Question 918: 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 919: The most efficient respiratory structure used by free living protozoan is ________ Options:
  A) body surface
  B) gills
  C) buccal cavity
  D) spiracle
  Show Answer
  The correct answer is A .
• Question 920:

  Which of the following options correctly identifies excretory organs in animals?

  Options:
  A) Stomach, intestines, and bladder
  B) Lungs, kidneys, and skin
  C) Brain, spinal cord, and nerves
  D) Heart, liver, and spleen
  Show Answer
  The correct answer is B .