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 2011: The hereditary characters in plants and animals are located on the Options:
  A) gene
  B) mucleus
  C) chromosome
  D) cell
  Show Answer
  The correct answer is C .
• Question 2012: The part of the mammalian skin involved in excretion is the Options:
  A) sweat glands
  B) malpighian layer
  C) sebaceous gland
  D) horny layer
  Show Answer
  The correct answer is A .
• Question 2013:

  The feeding relationship among a set of members of a community is referred to as _______?

  Options:
  A) a food web
  B) pyramid of energy
  C) a food chain
  D) pyramid of member
  Show Answer
  The correct answer is C .
• Question 2014:

  Spirogyra reproduces vegetatively by

  Options:
  A) spore production
  B) fragmentation
  C) multiple fission
  D) budding
  E) binary fission
  Show Answer
  The correct answer is B .
• Question 2015: Which of the following organs regulates the levels of water, salts , hydrogen ions and urea in the mammalian blood? Options:
  A) Liver
  B) Kidney
  C) Bladder
  D) Colon
  Show Answer
  The correct answer is B .
• Question 2016: Example of water-borne and sex linked diseases are Options:
  A) taeniasis and malaria
  B) cholera and gonorrhoea
  C) typhoid and syphilis
  D) dracunculiasis and haemophilia
  Show Answer
  The correct answer is D .
• Question 2017: Which of the following helps in the clotting of blood? Options:
  A) Red blood cells
  B) White blood cells
  C) Plasma
  D) Platelets
  Show Answer
  The correct answer is D .
• Question 2018: The manufacture of carbohydrates by plants takes place only in Options:
  A) the leaves
  B) the green stems
  C) chlorophyllous parts
  D) flowering plants
  Show Answer
  The correct answer is C .
• Question 2019: The correct base pairing for DNA is Options:
  A) adenine → thymine and guanine → cytosine
  B) adenine → guanine and thymine → cytosine
  C) adenine → cytosine and guanine → thymine
  D) adenine → adenine and cytosine → cytosine
  Show Answer
  The correct answer is A .
• Question 2020: Which of the following is an example of intraspecific competition? Options:
  A) a lizard and an ant-eater chasing an insect
  B) a worker termite and a soldier in a limited
  C) a hawk and an eagle targeting the same chicken
  D) yam and potato shots growing out through the same window
  Show Answer
  The correct answer is D .