O Level Biology Questions MCQs Quiz Online PDF Book Download

O level biology questions multiple choice questions (MCQs), o level biology questions quiz answers to learn biology online courses. Effects of human activity on ecosystem MCQs, o level biology questions quiz questions and answers for online bachelor degree. Learn conservation: renewable resources, conservation: forests and renewable resources, herbicides: o level biology, fast learning biology, pollution: inorganic wastes as cause, o level biology questions test prep for biology certifications.

Learn effects of human activity on ecosystem test MCQs: desertification is caused due to, with choices overgrazing, topsoil is eroded, rapid water evaporation from the soil, and all of these for online bachelor degree. Practice merit scholarships assessment test, online learning o level biology questions quiz questions for competitive assessment in biology major.

MCQ on O Level Biology QuestionsQuiz Book Download

MCQ: Desertification is caused due to

  1. overgrazing
  2. topsoil is eroded
  3. rapid water evaporation from the soil
  4. all of these

D

MCQ: Breakage of hydrogen bonds in protein coils results in

  1. activation of enzymes
  2. denaturation of proteins
  3. expedites the digestive system
  4. inactivation of protein molecules

B

MCQ: Dietary imbalances cause

  1. malnutrition
  2. starvation
  3. eating only proteins
  4. high cholesterol

A

MCQ: Advantages of seed dispersal includes

  1. less spread of disease
  2. plants colonizing new habitats
  3. prevention of overcrowding of plants in same habitat
  4. all of these

D

MCQ: Starch (C6H10O5)n is digested to form maltose (C12H22O11) through enzyme

  1. maltase
  2. amylase
  3. diastase
  4. sucrose

C