This Science quiz is called 'Respiration 2' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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In Science, respiration is the process by which oxygen is delivered from the environment to the cells for cellular exchange. In its proper terminology, it includes the entire process. In terms of visibility, respiration is simply a term for breathing.
How much do you know about what exactly goes on in the process of respiration? Find out in this quiz.