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 721:

  Use the table below to answer the question.

  High relative humidity will be expected in Zones

  Options:
  A) ii and iv
  B) ii and iii
  C) i and iii
  D) i and iv
  Show Answer
  The correct answer is B .
• Question 722: A function of the hydrochloric acid produced in the human stomach during digestion is to Options:
  A) neutralise the effect of bile
  B) coagulate milk protein and emulsify fats
  C) stop the action of ptyalin
  D) break up food into smaller particles
  Show Answer
  The correct answer is C .
• Question 723: the part of the stomach nearer the gullet is called th Options:
  A) epiglottis
  B) cardiac spincter
  C) duodenum
  D) pyloric sphincter
  Show Answer
  The correct answer is B .
• Question 724: After a meal of yam has been digested, the highest concentration of glucose is to be found in the Options:
  A) hepatic artery
  B) pulmonary vein
  C) hepatic portal vein
  D) posterior vena cava
  Show Answer
  The correct answer is C .
• Question 725: Spirogyra and mucor can be grouped together as Thallophyta because Options:
  A) They are unicellular organisms
  B) Their spores could be dispersed by wind
  C) They are capable of living independent lives
  D) They reproduce sexually only
  E) Their bodies are made up of thallus and filaments alternatively
  Show Answer
  The correct answer is E .
• Question 726: Dead plants and animals are decomposed by bacteria and fungi into Options:
  A) nitrate
  B) nitrites
  C) amino acids
  D) ammonia
  Show Answer
  The correct answer is D .
• Question 727: The population of different organisms that exist together in a habitat is called Options:
  A) biomes
  B) biosphere
  C) community
  D) ecology
  Show Answer
  The correct answer is C .
• Question 728: Grasses recover quickly from bush fires in the savanna because of their Options:
  A) perennating organs
  B) rapid growth rate
  C) fibrous roots
  D) succulent stems
  Show Answer
  The correct answer is C .
• Question 729: A fresh water plant such as water lily can solve the problem of buoyancy by the possession of Options:
  A) aerenchymarous tissues
  B) dissected leaves
  C) thin cell walls of the epidermis
  D) water-repelling epidermis
  Show Answer
  The correct answer is A .
• Question 730: Which of the following is NOT a waste product of plants? Options:
  A) Auxins
  B) Gum
  C) Resins
  D) tanins
  Show Answer
  The correct answer is A .