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Botany 184 Views 1 Answers

Sourav Pan🥇 GoldSeptember 5, 2024

Which of the following makes up most of an old tree trunk?

Which of the following makes up most of an old tree trunk?
– secondary xylem
– primary phloem
– meristem tissue
– primary xylem
– secondary phloem

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Sourav Pan🥇 GoldMay 15, 2025

Most of an old tree trunk is made up of secondary xylem. As the tree grows, the vascular cambium produces secondary xylem (wood) toward the inside, which accumulates over the years and makes up the bulk of the trunk.

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