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 171:

  A pollutant that is mostly associated with acid rain is

  Options:
  A) Nitrogen (IV) oxide
  B) Ozone
  C) Flourine
  D) Carbony (IV) oxide
  Show Answer
  The correct answer is A .
• Question 172: A phenotypic character with intermediate forms that can be graded from one extreme to the other is referred to as Options:
  A) discontinuous variation
  B) continuous variation
  C) a mutant
  D) a genome
  Show Answer
  The correct answer is B .
• Question 173: Carbon (iv) oxide is added to the atmosphere when ________? Options:
  A) plants build-up organic compounds
  B) plants absorb mineral salts
  C) sugars are completely broken down in animals
  D) there is thunderstorm
  Show Answer
  The correct answer is A .
• Question 174:

  

  In the diagram, which of the animals represents the oldest creatures in terms of evolutionary history?

  Options:
  A) iii
  B) ii
  C) i
  D) iv
  Show Answer
  The correct answer is D .
• Question 175:

  Use the list of ecological constituents below to answer the question below

  1. Mango 2. Spear grass 3. Goat 4. Sheep 5. Temperature 6. Beans 7. Rock 8. Water

  Items 1-4 can be regarded as

  Options:
  A) a population
  B) a community
  C) an ecosystem
  D) a niche
  Show Answer
  The correct answer is B .
• Question 176:

  

  The part labelled IV is the

  Options:
  A) albumen
  B) germinal disc
  C) yolk
  D) air space
  Show Answer
  The correct answer is B .
• Question 177: An indigenous method of renewing and maintaining soil fertility is by Options:
  A) clearing farms by burning
  B) planting one crop type
  C) adding inorganic fertilizers yearly
  D) crop rotation and shifting cultivation
  Show Answer
  The correct answer is D .
• Question 178: Ecological succession ends with the formation of a stable Options:
  A) niche
  B) population
  C) pioneer community
  D) climax community
  Show Answer
  The correct answer is D .
• Question 179:

  Which of the following features is not a characteristic of arteries? Arteries

  Options:
  A) possess valves at intervals throughout their length
  B) have thick muscular and elastic walls
  C) carry blood away from the heart
  D) transport oxygenated blood with the exception of the pulmonary artery
  Show Answer
  The correct answer is A .
• Question 180: The part that supplies food from the mother to the foetus is Options:
  A) Amnion
  B) Chorion
  C) Umbilical Cord
  D) Placenta
  Show Answer
  The correct answer is D .