This is a preview. Log in through your library . Abstract Background and Aims Leaf veins are usually encircled by specialized bundle sheath cells. In Câ‚„ plants, they play an important role in COâ‚‚ ...
Steve Nix is a member of the Society of American Foresters and a former forest resources analyst for the state of Alabama. Leaves are food factories for the tree. Powered by sunlight, the green ...
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