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 21:

  A population is best described as

  Options:
  A) A group of the same species of organisms living together
  B) A group of animals and plants living together
  C) A group of insects and grasses
  D) Different species of wild animals
  Show Answer
  The correct answer is A .
• Question 22: The genetic make-up of an organism is described as Options:
  A) Allele
  B) Chromosome
  C) Phenotype
  D) Genotype
  Show Answer
  The correct answer is D .
• Question 23:

  Which of the following diseases is not hereditary?

  Options:
  A) Albinism
  B) Scabies
  C) Haemophilla
  D) Colour blindness
  Show Answer
  The correct answer is B .
• Question 24: In which part of a leguminous plant can you find bacteria like Azotobacter? Options:
  A) Spongy mesophyll of leaf
  B) At the nodes
  C) At the internodes
  D) In nodules
  E) Palisade mesophyll of leaf
  Show Answer
  The correct answer is D .
• Question 25:

  

  The flower shown above is

  Options:
  A) complete, regular, hermaphroditic with superior ovary
  B) incomplete, regular, staminate with inferior ovary
  C) complete, regular, hermaphroditic with inferior ovary
  D) incomplete, irregular, pistillate with superior ovary
  Show Answer
  The correct answer is C .
• Question 26: Which of the following is the direct consequence of transferring energy from one trophic level to another? Options:
  A) An increase in biomass
  B) A decrease in the efficiency
  C) An increase in the total numbers of resulting individuals
  D) A decrease in the resulting biomass
  Show Answer
  The correct answer is D .
• Question 27:

  

  Toes of the feet ending in sharp, curved hook suitable for holding and tearing are most likely to belong to the bird with the bill in

  Options:
  A) I
  B) II
  C) III
  D) IV
  Show Answer
  The correct answer is B .
• Question 28:

  

  The joint at Y in the figure above is

  Options:
  A) ball and socket
  B) hinge
  C) pivot
  D) rivet
  E) none of the above
  Show Answer
  The correct answer is B .
• Question 29: A grass hopper respires by the means of its Options:
  A) Lung-books
  B) Gills
  C) Lungs
  D) Antennae
  E) Tracheal tubes
  Show Answer
  The correct answer is E .
• Question 30:

  The bright colours of the comb and feathers in the peacock are for?

  Options:
  A) sex differentiation
  B) beauty
  C) courtship
  D) defence
  Show Answer
  The correct answer is C .