Science

9th

grade

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Blood circulatory system

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15 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    Which of the organism does not have blood circulatory system?

    mammals

    reptiles

    insects

    amphibians

  • 2. Multiple Choice
    30 seconds
    1 pt

    Which of the vertebrates have the blood flow through the heart twice?

    reptiles

    birds

    amphibians

    fish

  • 3. Multiple Choice
    30 seconds
    1 pt

    What is the purpose of blood circulatory system in vertebrates?

    digest nutrients

    transmit sensations

    transport essential substances and waste products

    produce carbohydrates

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