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 1:

  

  The fruit represented is mainly dispersed by

  Options:
  A) animals
  B) water
  C) wind
  D) birds
  Show Answer
  The correct answer is B .
• Question 2:

  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 3:

  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 4: The type of asexual reproduction that is common to both Paramecium and protists is Options:
  A) budding
  B) sporulation
  C) fragmentation
  D) fission
  Show Answer
  The correct answer is D .
• Question 5: In spite of the removal of carbondioxide from the atmosphere, its amount remains more or less constant because Options:
  A) it is produced by green plants during photosynthesis
  B) it is produced during respiration of animals
  C) it is absorbed inn ocean water
  D) green plants release it during the day
  Show Answer
  The correct answer is B .
• Question 6: In the mammalian skin, melanin and keratin are contained in the Options:
  A) sebaceous gland
  B) sweat gland
  C) subcubaneous layer
  D) malpighian layer
  Show Answer
  The correct answer is D .
• Question 7: One of adaptation of Cactus opuntia to conserve water is the reduction of Options:
  A) internodes
  B) stem to leaves
  C) leaves to spine
  D) flower size
  Show Answer
  The correct answer is C .
• Question 8: Spines and shells on animals are adaptation for Options:
  A) camouglage
  B) chemical defence
  C) physical defence
  D) mimicry
  Show Answer
  The correct answer is C .
• Question 9: In demonstrating the importance of mineral elements in plants, the culture bottle must be darkened to Options:
  A) prevent alga growth in culture solution
  B) allow root growth
  C) prevent breakdown of mineral elements
  D) prevent photosynthesis in the root
  Show Answer
  The correct answer is A .
• Question 10:

  

  The part labelled 3 is the

  Options:
  A) leaf scar
  B) lenticle
  C) auxillary bud
  D) girdle scar
  Show Answer
  The correct answer is C .