Heart: O Level Biology MCQs App | IGCSE O Level Biology e-Book PDF Download

IGCSE O Level Biology MCQs (O Level) From Textbook

IGCSE O Level Biology Exam Prep MCQs – Mock Test 164

Heart: O Level Biology MCQ with Answers PDF Download – Test 164

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Heart: O Level Biology MCQ – Mock Test 164 PDF Download

MCQ 816: Left atrium moves to left ventricle, carrying:

  1. oxygenated blood
  2. deoxygenated blood
  3. oxyhemoglobin
  4. carboxyhemoglobin

MCQ 817: When the brain is viewed from above in man, the visible part of brain is:

  1. medulla oblongata
  2. Cerebral hemisphere
  3. cerebellum
  4. pituitary gland

MCQ 818: Rickets is caused due to the deficiency of:

  1. Vitamin B complex
  2. Vitamin E
  3. Vitamin K
  4. Vitamin D

MCQ 819: In plants upon soaking, the testa:

  1. sheds itself
  2. becomes swollen
  3. becomes permeable for gaseous exchange
  4. becomes hard

MCQ 820: Lives of organisms are greatly affected by:

  1. Producers
  2. Consumers
  3. Decomposers
  4. consumers and decomposers

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