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Circulatory system MCQ App Download - IGCSE O Level Biology e-Book

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Circulatory system MCQ (Multiple Choice Questions) PDF Download

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The Circulatory system Multiple Choice Questions (MCQ Quiz) with Answers PDF (Circulatory system MCQ PDF e-Book) download to study IGCSE O Level Biology Tests. Learn Transport in Mammals Multiple Choice Questions and Answers (MCQs), Circulatory system quiz answers PDF to learn online certification courses. The Circulatory system MCQ App Download: Free IGCSE O Level Biology App to study production of antibodies, organ transplantion and rejection, free online biology, blood and plasma test prep for two year degree programs.

The MCQ: Pulmonary veins carry "Circulatory system" App Download [Free] with answers: red oxygenated blood, bluish red deoxygenated blood, deoxygenated blood from heart to the lungs, and oxygenated blood from lungs to heart to learn online certification courses. Practice Circulatory system Quiz Questions, download Google e-Book (Free Sample) for online colleges for teaching.

Circulatory system Questions and Answers PDF Download

MCQ: 1

Pulmonary veins carry

  1. red oxygenated blood
  2. bluish red deoxygenated blood
  3. deoxygenated blood from heart to the lungs
  4. oxygenated blood from lungs to heart
MCQ: 2

When an artery dilates the

  1. lumen becomes constricted
  2. lumen gets wider
  3. person may appear pale
  4. elastic muscles become ineffective
MCQ: 3

In mammals, Endothelium is

  1. elastic in nature
  2. fully permeable
  3. selectively permeable
  4. non-permeable
MCQ: 4

When the heart relaxes,

  1. person respires
  2. peristalsis movements occur
  3. bile is produced
  4. the heart gets filled with blood
MCQ: 5

Veins do not require thick walls

  1. as they do not have to work harder
  2. they are required only occasionally
  3. the blood pressure declines while it gets to veins
  4. the blood pressures is immense

IGCSE O Level Biology Practice Tests

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