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 861: The sign + is used to indicate an association where an organism gains, while 0 is used where an organism is unaffected. An association indicated as +0 is known as Options:
  A) predation
  B) commensalism
  C) parasitism
  D) competition
  Show Answer
  The correct answer is B .
• Question 862: Where is the food stored in yam plant? Options:
  A) stem
  B) Bud
  C) Adventitous root
  D) Leaves
  E) Tap root
  Show Answer
  The correct answer is A .
• Question 863: Metabolic production of urea is carried out in the Options:
  A) urinary bladder and kidney
  B) Liver
  C) Pancreas
  D) Kidney and malphigian tubule
  Show Answer
  The correct answer is B .
• Question 864: Which of the following theories was NOT considered by Darwin in his evolutionary theory? Options:
  A) Variation
  B) Survival of the fittest
  C) Use and disuse
  D) Competition
  Show Answer
  The correct answer is C .
• Question 865:

  Which of the following statements about viruses is true?

  Options:
  A) Viruses can reproduce outside of a host cell
  B) Viruses require a host cell to replicate
  C) Viruses possess a cellular structure
  D) Viruses are living organisms
  Show Answer
  The correct answer is B .
• Question 866: The blood vessel which carries blood from the alimentary canal to the liver is the Options:
  A) hepatic artery
  B) hepatic vein
  C) hepatic portal vein
  D) mesenteric artery
  Show Answer
  The correct answer is C .
• Question 867: One of the characteristics of plants in the savanna is the Options:
  A) possession of thin, smoth barks
  B) possession of large tap root
  C) production of seedlings on mother plant
  D) possession of thick, flaky bark
  Show Answer
  The correct answer is D .
• Question 868: In most true ferns sporangia are grouped into Options:
  A) indusium
  B) fronds
  C) prothalli
  D) sari
  Show Answer
  The correct answer is D .
• Question 869: In an experiment to determine the percentage of air in a soil sample, the following readings were recorded: volume of water in measuring cylinder = 500 cm³volume of soil added to water = 350 cm³volume of water and soil after stirring = 800 cm³the percentage of air in the soil sample is Options:
  A) 6.25%
  B) 10.36%
  C) 14.28%
  D) 43.28%
  Show Answer
  The correct answer is A .
• Question 870: In a dicotyledonous stem, the zone between the epidermis and the pericycle is the Options:
  A) cortex
  B) stele
  C) xylem
  D) ploem
  Show Answer
  The correct answer is A .