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 301: Strong short and concical beak to pick and crush seeds is an adaptive feature of Options:
  A) duck
  B) owl
  C) weaver bird
  D) hawk
  Show Answer
  The correct answer is C .
• Question 302: Which of the following is not associated with excretion in mammals Options:
  A) Glomerulus
  B) Urea
  C) Faeces
  D) Carbon Dioxide
  E) Bowman's capsule
  Show Answer
  The correct answer is C .
• Question 303: In the mammalian skin, melanin and keratin are contained in the Options:
  A) sebaceous gland
  B) sweat gland
  C) subcubaneous layer
  D) malpighian layer
  Show Answer
  The correct answer is D .
• Question 304: Which of the following diseases could be exclusively associated with river basin? Options:
  A) Malaria
  B) Syphilis
  C) Onchocerciasis
  D) Cholera
  E) Poliomyelitis
  Show Answer
  The correct answer is C .
• Question 305: All the sons of a colour-blind woman will be coloured blind regardless of the state of the father because Options:
  A) the egg determines the phenotype of the son
  B) sons inherit the sex chromosome of their mothers
  C) the father's sex chromosomes is weaker in sons
  D) sex-linked traits express dominance in females
  Show Answer
  The correct answer is D .
• Question 306: The lime water in container C turned milky because Options:
  A) Carbon dioxide was produced by plant during respiration
  B) Carbon dioxide entered through the filter pump
  C) Oxygen reacts with lime water to produce milkiness
  D) Soda lime did not remove carbon dioxide from the air
  E) The delivery tubes were not well connected
  Show Answer
  The correct answer is A .
• Question 307: Which of the following is the most complex according to their cellular level of organization? Options:
  A) Heart
  B) Hair
  C) Euglena
  D) Hydra
  Show Answer
  The correct answer is A .
• Question 308: In an ecosystem, animals which feed directly on plants are called Options:
  A) secondary consumers
  B) primary consumers
  C) producers
  D) predators
  Show Answer
  The correct answer is B .
• Question 309:

  When a marine fish was taken from the ocean and put in a tank of fresh water, it died after a short period because?

  Options:
  A) the tank was too small compared to the large-ocean
  B) the body cells of the fish swelled and burst as a result of the hypotonic fresh water
  C) the body cells of the fish shrank as their sap was hypertonic to the freshwater
  D) there was no food in the tank, so the fish starved
  Show Answer
  The correct answer is B .
• Question 310:

  

  Use the diagram shown to answer the question. The experiment above is used to demonstrate the process of

  Options:
  A) transportation
  B) water culture
  C) diffusion
  D) osmosis
  Show Answer
  The correct answer is D .