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: In nature, plants and animals are perpetually engaged in mutualism because Options:
  A) they are rivals
  B) all animals rely on food produced by plants
  C) they utilize respiratory wastes of each other
  D) they are neighbours
  Show Answer
  The correct answer is B .
• Question 2012: The best explanation for the theories of natural selection is that Options:
  A) all organisms have equal capacity for survival in their habitats
  B) organisms have varying capacities for survival in their habitats
  C) organisms compete for resource and better competitors survive and thrive
  D) habitats allow only organisms that will not have to compete for survival
  Show Answer
  The correct answer is C .
• Question 2013: The pioneer organisms in ecological succession are usually the Options:
  A) mosses
  B) ilohens
  C) ferns
  D) algae
  Show Answer
  The correct answer is B .
• Question 2014: When oil is poured into the breeding site of mosquitoes, it Options:
  A) deprives the larvae of water
  B) kills the adults
  C) suffocates the pupae
  D) slows doen egg development
  Show Answer
  The correct answer is C .
• Question 2015:

  Use the diagram to answer the question.

  The type of protective adaption exhibited by the animal is

  Options:
  A) disruptive colouration
  B) flash colouration
  C) countershading colouration
  D) warning colouration
  Show Answer
  The correct answer is C .
• Question 2016: Fertilization in humans usually takes place in the Options:
  A) lower part of the uterus
  B) upper part of the uterus
  C) lower part of the oviduct
  D) upper part of the oviduct
  Show Answer
  The correct answer is D .
• Question 2017: The tuber cassava is NOT a stem tuber because it Options:
  A) Is distended with food reserve
  B) Has an aerial shoot portion
  C) Has other structure that could be called root
  D) Lacks axillary buds
  E) Has a bark over its stored food
  Show Answer
  The correct answer is D .
• Question 2018:

  

  In the experiment, the layer of oil serves to prevent water loss

  Options:
  A) transpiration
  B) evaporation
  C) osmosis
  D) guttation
  Show Answer
  The correct answer is B .
• Question 2019: The cell component that is present in a prokaryotic cell is the Options:
  A) Chloroplast
  B) Ribosome
  C) Mitochondrion
  D) Nuclear envelope
  Show Answer
  The correct answer is B .
• Question 2020: The importance of the mouth-brooding behaviour in Tilapia is that it Options:
  A) helps in keeping the young fish warm
  B) affords protection from predation for the young fish
  C) helps the fish to live in a social group
  D) provides regurgitated nourishment to the young fish
  Show Answer
  The correct answer is B .