Ribs - Bones that protect the heart and lungs., Out - Air in the lungs is pushed _ _ _  during exhalation., Alveolus - Tiny air sacs located at the end of each bronchiole., Moist - The surface of the alveolus is always _ _ _ _ _., Haze - Caused by factories, forest fires and open burnings. It will cause breathing difficulties, asthma and pneumonia., Stoma - Structure involved in gaseous exchange in plants. Starts with S., Lenticels - Structure involved in gaseous exchange in plants. Starts with L., Respiration - Process involved during daytime and nightime for plants., Photosynthesis - Process involved ONLY during the daytime for plants., Carbon dioxide - Gas released during respiration.,

Science Form 3: Chapter 2 Respiration

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