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Biology 20 Online
OpenStudy (arwen0222):

What happens to the phloem tissue from year to year of secondary growth?

OpenStudy (arwen0222):

I need help pls!!!!!!!!!!

OpenStudy (anonymous):

If this is kept up over many years, this process may produce a layer of cork. In the case of the cork oak it will yield harvestable cork.

OpenStudy (arwen0222):

Thank you very much!

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