When I see a tree, what immediately catches my attention is the bark that covers the tree, one because it is what the external layer of the tree is covered by and two because of the various structures the bark creates (rough and bumpy appearances).
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| tree bark 40X |
There are two layers to a bark but what I took a look at was the external layer. The layer consists of dead tissues and is a protective layer against the environment while preventing moisture on the inside from drying.
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| tree bark 100X |
As seen in these two pictures, the bark actually consists of dead tissues (cells are noticeable because of the nucleus inside of them) compactly aligned with one another.
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| tree bark 400X |
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