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IGCSE O Level Biology Study Guide: Practice Test 17 (Chapter 6)

Ecology: O level Biology Multiple Choice Questions (MCQs) PDF Download - 17

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The Ecology O level Biology Multiple Choice Questions (MCQs) with Answers PDF (Ecology O level Biology MCQs PDF e-Book) download Ch. 6-17 to study IGCSE O Level Biology Course. Practice Habitat specialization due to salinity MCQs, Ecology O level Biology quiz questions and answers PDF for ACT prep classes. The Ecology O level Biology MCQs App Download: Free IGCSE O Level Biology App to study parasitism: malarial pathogen, food chain and web, biotic environments, carbon cycle and fossil fuels career test to learn e-learning courses.

The MCQ: At night, cease of photosynthesis makes water "Ecology: O level Biology" App Download [Free] with answers: more alkaline, more acidic, neutral, and salty to learn e-learning courses. Solve Structure of Cell: Vacuoles Quiz Questions, download Google eBook (Free Sample) for schools that offer certificate programs.

Ecology O level Biology MCQs with Answers PDF Download: MCQ Quiz 17

MCQ: 81

At night, cease of photosynthesis makes water

  1. more acidic
  2. more alkaline
  3. neutral
  4. salty
MCQ: 82

Vector transfers the malarial parasite from

  1. a healthy person to an infected person
  2. an infected person to a mosquitoes
  3. an infected person to a healthy person
  4. a healthy person to a mosquito
MCQ: 83

Food chain and food web is made up of

  1. trophic levels
  2. ecological niche
  3. ecological community
  4. community
MCQ: 84

All the energy that enters the biotic part of the ecosystem is lost as

  1. light energy
  2. kinetic energy
  3. heat energy
  4. chemical energy
MCQ: 85

During respiration, the carbon dioxide (CO2) is

  1. produced
  2. released in the environment
  3. absorbed
  4. depleted

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Ecology: O level Biology MCQ App (Android & iOS)

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