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Stella [2.4K]
3 years ago
12

Biology

Biology
1 answer:
Serggg [28]3 years ago
8 0
A cross section of a leaf shows that it is a complex organ built of several different kinds of specialized tissues. The tissues, in turn, are built of specialized cells, and the cells, of organelles. Epidermis covers the upper and lower surfaces of the leaf.
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