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 601: An example of a parasitic protozoan is Options:
  A) Paramecium
  B) Plasmodium
  C) Eughlena
  D) Chlamydomonas
  Show Answer
  The correct answer is B .
• Question 602: The movement of molecules from a region of higher concentration to one of lower concentration is Options:
  A) Diffusion
  B) Transpiration
  C) Osmosis
  D) Translocation
  E) Plasmolysis
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  The correct answer is A .
• Question 603: Which of the following lists of diseases, their causes and transmission is CORRECT? Options:
  A) Cholera, virus, severe diarrhoea, infected water
  B) Malaria, protozoan, high fever, contact with infected person
  C) Syphilis, virus, veneral disease, sexual intercourse
  D) small pox, virus, skin with blister, close contact with infected person
  E) Sleeping sickness, bacteria, tiredness, headache and dozing, tsetsefly bite
  Show Answer
  The correct answer is D .
• Question 604: When an ovary is placed on the receptacle above the other floral parts it is referred to as Options:
  A) half inferior ovary
  B) superior ovary
  C) inferior ovary
  D) half superior ovary
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  The correct answer is B .
• Question 605: In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to Options:
  A) prevent alga growth in culture solution
  B) allow root growth
  C) prevent breakdown of mineral elements
  D) prevent photosynthesis in the root
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  The correct answer is A .
• Question 606:

  The process in which complex substances are broken down into simpler ones is referred to as

  Options:
  A) anabolism
  B) catabolism
  C) metabolism
  D) tropism
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  The correct answer is B .
• Question 607: An evidence of the relationship between living organisms and their extinct relatives can best be obtained from Options:
  A) embryology
  B) comparative anatomy
  C) comparative physiology
  D) palaeontology
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  The correct answer is D .
• Question 608: In which part of a leguminous plant can you find bacteria like Azotobacter? Options:
  A) Spongy mesophyll of leaf
  B) At the nodes
  C) At the internodes
  D) In nodules
  E) Palisade mesophyll of leaf
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  The correct answer is D .
• Question 609: Which of the following is one of Lamarck's theories? Options:
  A) Some variations are more favourable to existence in a given environment than others
  B) All living organisms are constantly involved in a struggle to existence
  C) The size of a given population remains fairly constant
  D) New species originates through the inheritance of acquired traits
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  The correct answer is D .
• Question 610: Ability to taste PTC in some individuals is a character that is Options:
  A) acquired
  B) heritable
  C) sex-linked
  D) morphological
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  The correct answer is B .