PPT-Respiratory system
Q What do living things need to breathe A Living things need oxygen to live Q Where do we get oxygen from A Oxygen is a gas in the air that is given out by plants
Download Presentation
Download Note : "Respiratory system" is the property of its rightful owner. Permission is granted to download and print materials on this website for personal, non-commercial use only, provided you retain all copyright notices. By downloading content from our website, you accept the terms of this agreement.
Presentation Transcript
Transcript not available.