LESSON 3.1 - AN INTRODUCTION TO RESPIRATION

QUIZ – An Introduction to Respiration Answer 2 of the following 3 questions in the space provided. Each question is worth 5 marks. 1. When air comes into the respiratory system, it first enters the mouth or nose and then passes through many structures before oxygen is exchanged with carbon dioxide. Put the following words in the correct order, starting with the first structure through which ... ................
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