HELP PLEASE Xylem tissue transports water inside plants. Xylem tissue is made up of -

A. cells

B. organisms

C. organs

D. organ systems

A. CELLS

Explanation:

Mature xylem is made up of dead cells that do not have cell contents, while phloem contains living cells (albeit without nuclei). The structure of xylem and phloem is also different. While xylem is made up of tracheids and vessels, phloem is made up of sieve tubes which have many holes for transporting nutrients.

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b. the carbon cycle ensures living things have a source of hydrogen