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 31: The adaptive importance of the nuptial flight from termite colonies is to Options:
  A) ensure cross-breeding between members of one colony and another
  B) disperse the reproductives in order to establish new colonies
  C) provide abundant food for birds and other animals during the early rains
  D) expel the reproductives so as to provide enough food for other members
  Show Answer
  The correct answer is B .
• Question 32:

  Long neck in giraffe is used to illustrate the theory of

  Options:
  A) Use and Disuse
  B) Origin of species
  C) Origin of life
  D) Natural selection
  Show Answer
  The correct answer is A .
• Question 33:

  Which of the following best describes the concept of trophic levels in a functioning ecosystem?

  Options:
  A) The levels of ecological interactions within an ecosystem
  B) The levels of energy flow within an ecosystem
  C) The levels of nutrient cycling within an ecosystem
  D) The levels of biological diversity within an ecosystem
  Show Answer
  The correct answer is B .
• Question 34:

  Which of the following is a primary source of pollution in aquatic ecosystems?

  Options:
  A) Soil erosion
  B) Industrial discharge
  C) Air pollution
  D) Deforestation
  Show Answer
  The correct answer is B .
• Question 35: Blood circulation in a mammalian is said to be double because Options:
  A) it passes twice through the heart in a complete circuit
  B) it moves in both arteries and veins
  C) it circulates in both the heart and other organs
  D) the heart contain auricles and ventricles
  Show Answer
  The correct answer is A .
• Question 36: Physiological adaptation to very dry conditions in animals demonstrates Options:
  A) rejuvenation
  B) xeromorphism
  C) hibernation
  D) aestivation
  Show Answer
  The correct answer is D .
• Question 37:

  

  Which of the plants is likely to have broad leaves and thin cuticle

  Options:
  A) R
  B) S
  C) T
  D) U
  Show Answer
  The correct answer is A .
• Question 38: Which of these groups of animals is likely to be found in fresh water? Options:
  A) Blood worm, pond skater and scorpion
  B) Blood worm, pond skater and dragonfly larva
  C) pond skater, scropion and dragonfly larva
  D) Pond skater, blood worm and ant-lion
  Show Answer
  The correct answer is B .
• Question 39:

  The theory of evolution can be defined as

  Options:
  A) The belief that all species were created in their current form
  B) The hypothesis that organisms strive to improve themselves over generations
  C) The idea that species change over time through natural processes
  D) The concept that evolution occurs through a series of sudden and dramatic changes
  Show Answer
  The correct answer is C .
• Question 40:

  Rabbits cannot survive in an aquatic habitat because they have

  Options:
  A) fore and hind limbs
  B) no gills
  C) no fins
  D) no scales
  Show Answer
  The correct answer is B .