Leaf In botany, a leaf is an above-ground plant organ specialized for photosynthesis. For this purpose http: //academickids.com/encyclopedia/index.php...
Leaf shape Terms used to describe the shape of plant leaves http: //academickids.com/encyclopedia/index.php...
Online Onion Root Tips Determining the phase of cell development by observing the tip of an onion root. http: //biology.arizona.edu/cell_bio/activities...