Exhales Well I've never seen a plant breath, or eat, and they definitely don't have bones… I don't think. Posey: Their parts all have functions. What do you think a stem does? Ivy: That's easy ...

It forms a solid support. The phloem is towards the centre, outside the xylem. Any green part of a plant above ground, where it is exposed to light, can photosynthesise. But a plant’s leaves are ...