Sunday 18th June 2023
    Difficulty: Medium

    Blood (Quiz #212)

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    Photo by ANIRUDH (Unsplash)

    Blood delivers substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those cells.

    1. Roughly how many red blood cells are there in a drop of your blood?

    2. According to Tony Hancock, how much blood is contained in your arm?

    3. Blood clotting is a complex process, that saves you from losing too much blood in case of a blood vessel being damaged. Which of these is one of the many substances involved in blood clotting?

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