Definition:
Xylem is the internal pathway plants use to move water and minerals from the roots to the rest of the plant. It functions like quiet plumbing, working continuously without being seen. The structure also helps support stems and trunks, giving plants strength as they grow. Xylem is most noticeable when you see it in wood grain, where its past work is recorded in rings and fibers. The word captures hidden transport that keeps living things standing.
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