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 31:
  

  Use the diagram above to answer this question. Arrows represent directional movement materials.

  The arrow labelled ll represents the

  Options:
  A) release of oxygen
  B) intake of carbon (IV) oxide
  C) movement of photosynthates
  D) movement of nutrients
  Show Answer
  The correct answer is A .
• Question 32: The depth of illumination in a water body can be measured with a Options:
  A) photometer
  B) secchi disc
  C) hydrometer
  D) anemometer
  Show Answer
  The correct answer is B .
• Question 33: A certain savanna grasshopper changes colour from green during the rainy season to brown during the dry season and black after dry season bush fires. The reason for these colour changes is that the Options:
  A) grasshopper is getting older
  B) environmental temperature is changing
  C) grasshopper is avoiding predation
  D) grasshopper is frequently moulting
  Show Answer
  The correct answer is C .
• Question 34: An instrument that can be used to demonstrate phototropism and geotropism in plants is the Options:
  A) auxanometer
  B) potometer
  C) klinostat
  D) photometer
  Show Answer
  The correct answer is C .
• Question 35: When two heterozygotes mate, the dominant trait will appear in Options:
  A) the F₁ generation only
  B) the F₂ generation only
  C) both the F₁ and F₂ generations
  D) neither the F₁ nor F₂ generation
  Show Answer
  The correct answer is C .
• Question 36: A biotic factor which affects the distribution and abundance of organisms in a terrestrial habitat is Options:
  A) temperature
  B) competition
  C) pH
  D) light
  Show Answer
  The correct answer is B .
• Question 37: Which of the following groups of diseases are associated with water? I Onchocerciasis II Schistosomiasis III Dracunculiasis IV Elephantiasis V Taeniasis Options:
  A) I, II and III
  B) II, IV and V
  C) II, III and IV
  D) I, II and V
  Show Answer
  The correct answer is A .
• Question 38: The part of the brain that controls heart beat and breathing is the Options:
  A) olfactory lobe
  B) cerebellum
  C) cerebral hemisphere
  D) medulla oblongata
  Show Answer
  The correct answer is D .
• Question 39: Which of the following is a characteristics of a bacteria except _______? Options:
  A) they can be seen under microscope
  B) they range from 0.5 µ m in diameter
  C) They are grouped accordingly to their cell shape
  D) they do not cause disease
  Show Answer
  The correct answer is D .
• Question 40:

  

  The structure that holds the yolk in position is labelled

  Options:
  A) II
  B) I
  C) IV
  D) III
  Show Answer
  The correct answer is D .