Well, seeing and considering that the question on the reason why we , as large beings, need systems of transport is still not clear, I'm including in this post, a page from another boook. I hope it explains this "problem" better than me
I´m also posting the two videos we discussed last class: I hope it can help you understand the relationship between surface area and volume. This is a key concept to understand absorption in every part of our bodies.
So, less talking and more doing!!!
A biologist will show this ratio with an interesting lab experiment
See you tomorrow!!!!
Andrea
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