Bored?
Have fun with leafs.
In botany, a leaf is
an above-ground plant organ specialized for photosynthesis.
For this purpose, a leaf is typically flat (laminar) and
thin, to expose the cells containing chloroplast (chlorenchyma
tissue, a type of parenchyma) to light over a broad area,
and to allow light to penetrate fully into the tissues.
Leaves are also the sites in most plants where transpiration
and guttation take place. Leaves can store food and water,
and are modified in some plants for other purposes. The
comparable structures of ferns are correctly referred
to as fronds. Furthermore, leaves are prominent in the
human diet as leaf vegetables... |
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