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 11: Organisms in an ecosystem are usually grouped according to their trophic level as Options:
  A) carnivores and epiphytes
  B) consumers and parasites
  C) producers and consumers
  D) producers and saprophytes
  Show Answer
  The correct answer is C .
• Question 12: Which of the following sequences represents process of blood clothing? 1. Fibrins forms a network of threads 2. Red blood cells are caught and clot is formed 3. Fibrinogen in plasma changes into fibrin 4. Blood is exposed to air Options:
  A) 4, 3, 2, 1
  B) 4, 3, 1, 2
  C) 3, 1, 4, 2
  D) 1, 2, 3, 4
  E) 3, 1, 2, 4
  Show Answer
  The correct answer is B .
• Question 13: Which of the following substance is not found in urine? Options:
  A) Water
  B) Sodium chloride
  C) Nitrogenous compounds
  D) Calcium chloride
  E) Nitrogenous salts
  Show Answer
  The correct answer is D .
• Question 14: 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 15: One distinctive feature in the life history of liverworts is that they exhibit Options:
  A) Alternation of generation
  B) Vegetative reproduction
  C) Asexual reproduction
  D) Sexual reproduction
  Show Answer
  The correct answer is A .
• Question 16: The modification in structure, physiology and behaviour of plant and animal is called ______ Options:
  A) adaption
  B) evolution
  C) variation
  D) succession
  Show Answer
  The correct answer is A .
• Question 17: The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has Options:
  A) lower rainfall and shorter grasses
  B) less grasses and scattered trees
  C) more rainfall and taller grasses
  D) less arboreal and burrowing animals
  Show Answer
  The correct answer is C .
• Question 18: The main waste products formed in plants are Options:
  A) alkaloids tannins and resins
  B) water, alkaloids and carbondioxde
  C) oxygen, carbondioxide and alkaloids
  D) water, carbondioxide and oxygen
  Show Answer
  The correct answer is A .
• Question 19: Treatment of a poor soil with lime supplies Options:
  A) Sulphur
  B) Calcium
  C) Phosphorus
  D) Sodium
  E) Nitrogen
  Show Answer
  The correct answer is B .
• Question 20: Which of the following will be first digested if ingested at the same time? Options:
  A) Cooked beans
  B) Cooked rice
  C) cod liver oil
  D) Roasted beef
  Show Answer
  The correct answer is B .