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 2171: The gas produced during tissue respiration can be identified by using Options:
  A) calcium hydroxide
  B) copper sulphate
  C) calcium carbonate
  D) sodium hydroxide
  Show Answer
  The correct answer is A .
• Question 2172:

  The blood vessel which carries blood from the alimentary canal to the liver is the?

  Options:
  A) hepatic artery
  B) hepatic vein
  C) hepatic portal vein
  D) mesenteric artery
  Show Answer
  The correct answer is C .
• Question 2173:

  In the root vascular system, the stele is directly surrounded by the

  Options:
  A) pericycle
  B) cortex
  C) endodermis
  D) parenchyma
  Show Answer
  The correct answer is C .
• Question 2174:

  

  Use the diagram below to answer the question that follow:

  The diagram represents a

  Options:
  A) Hygrometer
  B) Wind vane
  C) Anemometer
  D) Rain gauge
  Show Answer
  The correct answer is C .
• Question 2175:

  Which of the following is an example of conserving resources in an ecosystem

  Options:
  A) Excessive use of chemical fertilizers in agriculture
  B) Introducing invasive species to an ecosystem
  C) Implementing sustainable fishing practices
  D) Cutting down trees for timber production
  Show Answer
  The correct answer is C .
• Question 2176: In typical predator food chain involving secondary and tertiary consumers, the organism become progressively Options:
  A) smaller and more numerous along the food chain
  B) equal in number and size along the food chain
  C) larger and fewer along the food chain
  D) parasitized along the food chain as consumers get bigger
  Show Answer
  The correct answer is C .
• Question 2177: The primary structure responsible for pumping blood for circulation through the mammalian circulatory systems is the Options:
  A) veins
  B) right auricle
  C) arteries
  D) left ventricle
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  The correct answer is D .
• Question 2178: When the solute concentration of the cell and its surrounding medium are the same, the solution is said to be Options:
  A) hypertonic
  B) hypotonic
  C) isotonic
  D) acidic
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  The correct answer is C .
• Question 2179: The natural process that produces adaptive evolutionary changes is Options:
  A) Mutation
  B) Gene flow
  C) Genetic drift
  D) Natural selection
  Show Answer
  The correct answer is D .
• Question 2180: During thunderstorms the energy of lightning discharge causes Options:
  A) oxygen and nitrogen to combine
  B) more carbon dioxide to be formed
  C) nitrites to be converted to nitrates
  D) nitrates to be converted to nitrogen
  E) death
  Show Answer
  The correct answer is A .