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Xylem translocates:

1. Water only
2. Water and mineral salts only
3. Water, mineral salts and some organic nitrogen only
4. Water, mineral salts, some organic nitrogen and hormones

Correct answer: Water, mineral salts, some organic nitrogen and hormones

Solution

Xylem mainly transports water and mineral ions, but it can also carry small amounts of organic nitrogen compounds and hormones. So the most complete option is the one including all of these substances.

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