Ordinary Level Biology MCQs Quiz Online PDF Download

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IGCSE biology practice test MCQ: carbon dioxide (co2) is released in atmosphere through with options respiration, combustion, decay and all of these for scholars competing for college and universities' scholarships with college board ACT practice test. Free study guide is for online learning ordinary level biology quiz test with MCQs to practice test questions with answers.

MCQs on Ordinary Level Biology Quiz PDF Download

MCQ: Carbon dioxide (CO2) is released in atmosphere through

  1. respiration
  2. combustion
  3. decay
  4. all of these


MCQ: Hydrophonics refers to

  1. growing plants without soil
  2. growing plants in air
  3. growing plants in soil
  4. all of these


MCQ: Enzyme 'Enterokinase' is found in

  1. Saliva
  2. Gastric Juice
  3. Pancreatic Juice
  4. Intestinal juice


MCQ: Caseinogen is a form of

  1. soluble milk proteins
  2. insoluble milk proteins
  3. cellulose
  4. proteins


MCQ: Carbon (C) requirements are met through organic compounds in

  1. autotrophic nutrition
  2. photoautotrophic nutrition
  3. chemoautotrophs
  4. heterotrophic nutrition