Stuffed Animals. Thereâs TONS of stuffed Disney animals and friends on eBay. One of the most expensive is this Genie doll, which is listed for $1,000. I know I have some of these somewhere, but mine are definitely more, ah, âwell-lovedâ than this one.
1 spongy mesophyll The plant tissue in a leaf which has loosely packed cells and air spaces between them to allow gas exchange. 2  stomata Tiny holes in the epidermis (skin) of a leaf-usually on the undersides of leaves. 3  They control water loss and gas exchange by opening and closing.
The main gas exchange surfaces in plants are the spongy mesophyll cells in the leaves. Leaves, of course, have a huge surface area, and the irregular-shaped, loosely-packed spongy cells increase the area for gas exchange still further.as exchange takes place at a respiratory surface-a boundary between the external environment and the interior of the body. For simple unicellular organisms the respiratory surface is the cell membrane, but for large organisms it is part of specialised organs like lungs, gills or leaves.