Please send me the reports on the practical lab we worked on last week and once that is completed, we will look at Chapter 21, reading pages 351-356, Breathing & Circulation.
For Inquiry activity 21A, I would like you to watch the following online video resource https://www.youtube.com/watch?v=34ESzqzf_Uo
The structure of the breathing system on page 353
Here is a link which is fantastic for revision;
and it includes an online test;