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 431: Which of the following conditions is NOT necessary for photosynthesis to take place? Options:
  A) ChlorophyII
  B) Light
  C) Carbon(II)oxide
  D) Carbon(IV)oxide
  Show Answer
  The correct answer is C .
• Question 432:

  Use the diagram to answer the question

  The neural arch is labelled

  Options:
  A) i
  B) ii
  C) iii
  D) iv
  Show Answer
  The correct answer is B .
• Question 433: From which group of animals are the mammals generally believed to have most recently evolved? Options:
  A) Reptiles
  B) Fish
  C) Amphibians
  D) Birds
  Show Answer
  The correct answer is C .
• Question 434: In mammals, the exchange of nutrients and metabolic products occurs in the Options:
  A) lungs
  B) oesophagus
  C) trachea
  D) lymph
  Show Answer
  The correct answer is D .
• Question 435: Gaseous exchange in the lungs takes place in the Options:
  A) alveoli
  B) bronchi
  C) bronchioles
  D) trachea
  Show Answer
  The correct answer is A .
• Question 436:

  Which of the following is an evolutionary trend commonly observed in organisms?

  Options:
  A) Decreased complexity over time
  B) Increased dependence on external resources
  C) Increased genetic diversity within populations
  D) Decreased adaptation to the environment
  Show Answer
  The correct answer is C .
• Question 437: The part of the human gut that has an acidic content is the Options:
  A) stomach
  B) duodenum
  C) ileum
  D) colon
  Show Answer
  The correct answer is A .
• Question 438: Which of the following is an example of parasitism Options:
  A) fungai growing on a dead tree branch
  B) a squirrel living in an abondoned nest of a bird
  C) mistletoe growing on an orange tree
  D) cattle egrets taking ticks from the body of cattle
  Show Answer
  The correct answer is C .
• Question 439:

  Use the following information to answer the question below.

  I. Test tube containing cane sugar and water . ll. Test tube containing cane sugar and diluted acid. III. Test tube containing cane sugar and its degrading enzyme .

  The enzyme involved in the hydrolysis is

  Options:
  A) rennin
  B) erepsin
  C) sucrase
  D) maltase
  Show Answer
  The correct answer is C .
• Question 440: The breaking down of food in the alimentary canal is called Options:
  A) digestion
  B) egestion
  C) excretion
  D) ingestion
  Show Answer
  The correct answer is A .