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 1461: 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
  Show Answer
  The correct answer is D .
• Question 1462:
  

  From the diagram above the optimal temperature for breeding cockroaches is

  Options:
  A) 15^oC
  B) 19^oC
  C) 24^oC
  D) 33^oC
  Show Answer
  The correct answer is C .
• Question 1463: Habitats are generally classified into Options:
  A) biotic and abiotic
  B) aquatic and terrestrial
  C) aboreal and marine biomes
  D) microhabitats and macrohabitats
  Show Answer
  The correct answer is B .
• Question 1464:

  Which of the following is an example of a microorganism in action as a disease vector?

  Options:
  A) Fungi decomposing dead plant material
  B) Mosquito transmitting malaria
  C) Bacteria causing food poisoning
  D) Algae producing oxygen through photosynthesis
  Show Answer
  The correct answer is B .
• Question 1465: A dwarf plant can be stimulated to grow to normal height by the application of Options:
  A) thyroxin
  B) gibberellin
  C) insulin
  D) kinin
  Show Answer
  The correct answer is B .
• Question 1466:

  

  The grand period of growth is represented by

  Options:
  A) N
  B) M
  C) L
  D) K
  Show Answer
  The correct answer is A .
• Question 1467: The highest percentage of energy in an ecosystem occurs at the level of the Options:
  A) secondary consumer
  B) decomposers
  C) producers
  D) primary consumers
  Show Answer
  The correct answer is C .
• Question 1468: One of the ways which body cells differ from gamete cells is in the Options:
  A) type of centromeres they contain
  B) number of chromosomes pairs they contain
  C) type of chromatide they contain
  D) number of chromosomes they contain
  Show Answer
  The correct answer is D .
• Question 1469:

  

  The type of vegetative reproduction illustrated in the diagram above is

  Options:
  A) grafting
  B) adventitious bud
  C) sucker
  D) aerial layering
  Show Answer
  The correct answer is B .
• Question 1470: Which of the following characters is NOT sex-linked? Options:
  A) Albinism
  B) Baldness
  C) Haemophilia
  D) Colour blindness
  Show Answer
  The correct answer is A .