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 631: All living organism Options:
  A) Photosynthesize
  B) Respire
  C) Move
  D) Feed
  E) Transpire
  Show Answer
  The correct answer is B .
• Question 632: 28 g soil sample was heated to a constant weight of 24 g. When further heated to red hot and cooled, it weighed 18 g. What is the percentage of humus in the soil? Options:
  A) 22.2
  B) 55.6
  C) 75.0
  D) 25.0
  E) 35.7
  Show Answer
  The correct answer is A .
• Question 633:

  The study of an individual organism or a single species of organism and its environment is

  Options:
  A) Artecology
  B) Ecological concepts
  C) Synecoloy
  D) Biotic composers
  Show Answer
  The correct answer is A .
• Question 634:

  An adaptation for defense in animals is?

  Options:
  A) croaking of a male toad
  B) basking in lizard
  C) spines in porcupine fish
  D) huddling together of penguins
  Show Answer
  The correct answer is C .
• Question 635: Which of the following statements is NOT true of the piliferous layer of root? It Options:
  A) Has a very thin cuticle
  B) Is the outermost layer of the cortex
  C) May bear root hairs
  D) Breaks down as the root ages
  E) Is replaced by cork in old roots
  Show Answer
  The correct answer is A .
• Question 636: Growth can best be determined in a population of Spirogyra by measuring the Options:
  A) total length of the filament
  B) total widths of the filaments
  C) rate of photosynthesis in the population
  D) dry weights of the organism
  Show Answer
  The correct answer is A .
• Question 637: Aged erythrocytes are dissolved in the Options:
  A) pancreas
  B) liver
  C) lymph nodes
  D) kidney
  Show Answer
  The correct answer is B .
• Question 638:
  

  Which stage is found in the muscle of an infected pig?

  Options:
  A) 3
  B) 4
  C) 5
  D) 6
  Show Answer
  The correct answer is A .
• Question 639: Anaerobic respiration differs from aerobic respiration by the production of Options:
  A) less amount of energy and water
  B) greater amount of energy and alcohol
  C) less amount of energy and alcohol
  D) greater amount of energy and water
  Show Answer
  The correct answer is C .
• Question 640: Which of the following is a dangerous product of coal burning? Options:
  A) Sulphur dioxide
  B) Carbon dioxide
  C) Carbon
  D) Nitrogen
  Show Answer
  The correct answer is A .