this is the exchange of gases and nutrients.
It took me a bit but i figured it out!
Hope this helps you some!:)))
Answer:
I need the graph to be sure
Explanation:
Answer:
testing contact numbers periodically
Explanation:
That makes most sense to me because calling their doctor serves no purpose, printing out weekly spreadsheet is waste of paper, and making sure one staff has training does not fit the question I think.
