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 41: An organism which lives on the remain of dead plant is Options:
  A) An endoparasite
  B) Saprophyte
  C) Commensal
  D) Symbiont
  E) ectoparasite
  Show Answer
  The correct answer is B .
• Question 42:

  

  The structure labelled 4 is for

  Options:
  A) feeding
  B) attachment
  C) excretion
  D) respiration
  Show Answer
  The correct answer is B .
• Question 43: Serum differs from blood plasma because Options:
  A) contains blood cells and fibrinogen
  B) contains soluble food and mineral salt
  C) lacks the blood protein and fibrinogen
  D) lacks blood cells and albumin
  Show Answer
  The correct answer is C .
• Question 44:

  Which of the following mechanisms is responsible for providing support in plants?

  Options:
  A) Muscles and bones
  B) Exoskeleton
  C) Endocrine system
  D) Cell walls and turgor pressure
  Show Answer
  The correct answer is D .
• Question 45: Trace elements are required by plants mainly for the Options:
  A) formation of pigments and enzymes
  B) production of energy and hormones
  C) manufactured of carbohydrates
  D) manufacture of proteins
  Show Answer
  The correct answer is A .
• Question 46: The rate of transpiration is NOT affected by Options:
  A) the weight of the stomata pores
  B) humidity
  C) temperature
  D) the size of the stomata pores
  Show Answer
  The correct answer is A .
• Question 47: The pathogen that cause smallpox is Options:
  A) picornavirus
  B) peramyxovirus
  C) herpesvirus
  D) poxvirus
  Show Answer
  The correct answer is D .
• Question 48:

  Total salt content in blood is about

  Options:
  A) 1.85 to 1.9%
  B) 11.85 to 11.9%
  C) 2.85 to 2.9%
  D) 0.85 to 0.9%
  Show Answer
  The correct answer is D .
• Question 49: The anatomical evidence usually used in support of the evolutionary relationship among whales, human, birds, and dogs is the possession of Options:
  A) thick skin
  B) pentadactyl limb
  C) tail
  D) epidermal structure
  Show Answer
  The correct answer is B .
• Question 50:

  Name the blood cells in which nucleus is absent

  Options:
  A) Lymphocytes
  B) Blood Platelets
  C) Monocytes
  D) Eosinophil
  Show Answer
  The correct answer is B .