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 1811:

  The greatest influence on a stable ecosystem in nature is exerted by

  Options:
  A) man
  B) pollution
  C) animals
  D) rainfall
  Show Answer
  The correct answer is A .
• Question 1812: One primitive feature of the coelenterates is the possession of Options:
  A) a dorsal mouth
  B) radial symmetry
  C) bilateral symmetry
  D) a false foot
  Show Answer
  The correct answer is B .
• Question 1813: Which of the following animals has homodont dentition? Options:
  A) Rat
  B) Man
  C) Lizard
  D) Pigeon
  Show Answer
  The correct answer is C .
• Question 1814: In man, the ability to roll the tongue is a variation classified as Options:
  A) anatomical
  B) physiological
  C) structural
  D) morphological
  Show Answer
  The correct answer is B .
• Question 1815: The process of deamination is essential for the Options:
  A) digestion of protein
  B) secretion of bile
  C) formation of urea
  D) formation of antibody
  Show Answer
  The correct answer is A .
• Question 1816: Which of the following will not allow osmosis to take place Options:
  A) pig's bladder
  B) cellophane
  C) parchment paper
  D) transparent polythene
  E) cow's bladder
  Show Answer
  The correct answer is D .
• Question 1817: The movement of blood between the heart and all other parts of the body besides the lung is known as Options:
  A) systemic circulation
  B) closed circulatory system
  C) pulmonary circulation
  D) single circulation system
  Show Answer
  The correct answer is A .
• Question 1818: A phenomenon by which an animal goes into a state of dormancy during the dry season is called Options:
  A) hibernation
  B) aestivation
  C) incubation
  D) deactivation
  Show Answer
  The correct answer is B .
• Question 1819:

  

  In the diagram, the structure labelled II is the

  Options:
  A) spermathecal pore
  B) cocoon
  C) clitellum
  D) chaetea
  Show Answer
  The correct answer is C .
• Question 1820:

  

  In the figure above the structured labelled X is the

  Options:
  A) cellulose cell wall
  B) plasma membrane
  C) nuclear membrane
  D) mucilage wall
  E) ectoplasm
  Show Answer
  The correct answer is D .