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IGCSE O Level Biology Competitive Exam: Mock Test 339

Human Biology Notes Questions with Answers PDF Download - 339

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The Human Biology Notes Questions and Answers PDF (Human Biology Quiz Answers PDF e-Book) download Ch. 7-339 to study IGCSE O Level Biology Practice Tests. Learn Effects of Human Activity on Ecosystem MCQ Questions PDF, Human Biology Multiple Choice Questions (MCQ Quiz) to learn online school courses. The Human Biology Notes App Download: Free IGCSE O Level Biology App to study human biology, habitat specialization due to salinity, structure of a wind pollinated flower, o level 2014 biology, carboxyhaemoglobin test prep for online degree programs.

The Quiz: In humans, the sensitivity of respiratory diseases, eyes, and air passages is experienced due to "Human Biology" App (iOS, Android) with answers: lead, carbon dioxide, sulphur dioxide, and carbon monoxide for online degree programs. Study Effects of Human Activity on Ecosystem Questions and Answers, Apple Book to download free sample for online college classes.

SAT Test for SAT Prep

Human Biology Quiz with Answers PDF Download: MCQs 339

MCQ: 1691

In humans, the sensitivity of respiratory diseases, eyes, and air passages is experienced due to

  1. carbon dioxide
  2. lead
  3. carbon monoxide
  4. sulphur dioxide
MCQ: 1692

PH (power of Hydrogen) of about 8 is characteristic of

  1. sea water
  2. fresh water
  3. stagnant water
  4. lime water
MCQ: 1693

Dull colored, smaller and non-scented flowers rely upon

  1. insect-pollination
  2. wind pollination
  3. self pollination
  4. cross pollination
MCQ: 1694

Fish can come to the surface of the water for air-breathing in waters of

  1. low oxygen concentration
  2. high oxygen concentration
  3. low hydrogen concentration
  4. high hydrogen concentration
MCQ: 1695

Carboxyhemoglobin is of

  1. bright red
  2. purplish red
  3. bright pink
  4. dark red

IGCSE O Level Biology Mock Tests: Textbook App & eBook Quizzes

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Human Biology Notes App (Android & iOS)

Human Biology Notes App

Human Biology Notes App (iOS & Android)

O Level Biology Notes App

SAT Biology Notes App (Android & iOS)

SAT Biology Notes App

Cell Biology Notes App (iOS & Android)

Cell Biology Notes App