IGCSE O Level Biology MCQs (O Level) From Textbook

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IGCSE O Level Biology MCQs – Mock Test 344

Circulatory system MCQ with Answers PDF Download – Test 344

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The Circulatory system MCQ with Answers PDF (Circulatory system Multiple Choice Questions (MCQs) PDF e-Book) download Ch. 17-344 to study IGCSE O Level Biology Practice Tests. Study Transport in Mammals Test PDF, Circulatory system Multiple Choice Questions (MCQ Quiz) for SAT subject tests. Download IGCSE O Level Biology MCQs App: Free Circulatory system App to study circulatory system, what is selective reabsorption, fungi: mode of life, drug types test prep to study e-learning courses.

The MCQ: Presence of veins was demonstrated by; "Circulatory system" App (Free Android & iOS) with answers: william harvey, jan-baptista van helmont, john dalton, and robert hooke for SAT subject tests. Practice Transport in Mammals Questions and Answers, Google eBook to download free chapter for ACT test.

Circulatory system MCQ – Mock Test 344 PDF Download

MCQ: 1716

Presence of veins was demonstrated by

  1. Jan-Baptista van Helmont
  2. William Harvey
  3. Robert Hooke
  4. John Dalton
MCQ: 1717

Essential glucose (C6H12O6) and amino acids (R-CH(NH2)-COOH) are reabsorbed through

  1. osmosis
  2. concentration gradient
  3. active transport
  4. blood pressure
MCQ: 1718

In fungi, the starch (C6H10O5)n is converted to maltose (C12H22O11) through

  1. protease
  2. deamination process
  3. maltase
  4. amylase
MCQ: 1719

Examples of depressant drugs include

  1. marijuana
  2. cocaine
  3. barbiturates
  4. morphine
MCQ: 1720

Use of fossil fuels causes

  1. pollution
  2. conservation of resources
  3. global warming
  4. infections

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