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 1541:

  Which of the following is a nitrifying bacterium?

  Options:
  A) Rhizobium
  B) Nictrobacter
  C) Azotobacter
  D) Pseudomonas
  Show Answer
  The correct answer is B .
• Question 1542:

  In genetic counseling, a man with hemoglobin formation HbAHbS is most preferred to marry a woman of?

  Options:
  A) HbA HbA
  B) HbC HbH
  C) HbM HbF
  D) HbS HbS
  Show Answer
  The correct answer is A .
• Question 1543: The dorsal and anal fins of fish are used for Options:
  A) Upward movement
  B) Controlling rolling
  C) Downward movement
  D) Steering
  E) Buoyancy
  Show Answer
  The correct answer is B .
• Question 1544: The function of the clitellum in the earthworm is to Options:
  A) aid digestion
  B) prevent desiccation
  C) assist locomotion
  D) secrete cocoon
  Show Answer
  The correct answer is D .
• Question 1545: A germinating seed requires oxygen which is essential for Options:
  A) Converting carbohydrate into glucose
  B) Transporting energy from one part of the plant to another
  C) The production of energy by oxidising essential carbohydrate
  D) Hydrolysis of proteins
  E) The formation of water molecules within the germinating seed
  Show Answer
  The correct answer is C .
• Question 1546: A good example of a disploblastic bryophytes from flowering plants is the Options:
  A) ameoba
  B) hydra
  C) earthworm
  D) round worm
  Show Answer
  The correct answer is B .
• Question 1547: The characters by which an organism is recognized are termed its Options:
  A) phenotype
  B) genotype
  C) morphology
  D) anatomy
  E) physiology
  Show Answer
  The correct answer is A .
• Question 1548: A caterpillar and an aphid living in different parts of the same plant can be said to Options:
  A) occupy the same ecological niche
  B) be in different habitat
  C) occupy different ecological niche
  D) be in the same microhabitats
  Show Answer
  The correct answer is A .
• Question 1549: An increase in air pressure in the lungs is due to the Options:
  A) increase in the volume of the thoracic cavity
  B) upward movement of he ribs
  C) relaxation of the diaphragm
  D) contraction of the intercostal musles
  Show Answer
  The correct answer is C .
• Question 1550: The hereditary characters in plants and animals are located on the Options:
  A) gene
  B) mucleus
  C) chromosome
  D) cell
  Show Answer
  The correct answer is C .