O Level Courses

IGCSE O Level Biology Certification Exam Tests

IGCSE O Level Biology Practice Test 153

Introduction to Biology Quiz Questions and Answers PDF Download - 153

The Introduction to Biology Quiz Questions and Answers PDF (Introduction to Biology Quiz with Answers PDF e-Book) download Ch. 20-153 to prepare IGCSE O Level Biology Practice Tests. Solve What is Biology MCQ with answers PDF, Introduction to Biology Multiple Choice Questions (MCQ Quiz) for GRE subject tests. The Introduction to Biology Quiz App Download: Free learning app for introduction to biology, mammalian skin, hormones: endocrine glands, decomposers in nature, habitat specialization due to salinity test prep for online colleges for science.

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Introduction to Biology Questions and Answers PDF Download: MCQ 153

MCQ 761:

Death of an organism may be due to stop or breakdown of

  1. transparent systems
  2. open systems
  3. hybrid systems
  4. closed systems
MCQ 762:

Rubbed off cells of cornified layer are replaced by

  1. malpighian layer
  2. granular layer
  3. dermis
  4. sub-cutaneous fat
MCQ 763:

Special group of cells in pancreas which secrete insulin is called

  1. loop of Henle
  2. tendon
  3. malpighian corpuscle
  4. islets of Langerhans
MCQ 764:

Inorganic salts released during decomposition include

  1. nitrate
  2. sulfate
  3. phosphate
  4. all of above
MCQ 765:

During night, the fresh water is made more acidic due to

  1. onset of photosynthesis
  2. caesura of photosynthesis
  3. onset of respiration
  4. onset of transpiration

IGCSE O Level Biology Exam Prep Tests

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Introduction to Biology App (Android & iOS)

Introduction to Biology App (Android & iOS)

O Level Biology App (Android & iOS)

O Level Biology App (iOS & Android)

9th Grade Biology App (Android & iOS)

9th Grade Biology App (Android & iOS)

SAT Biology App (Android & iOS)

SAT Biology App (iOS & Android)