Tracheids and Vessels occurs in
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Answer:
Tracheids are the fundamental cell type in the xylem. ... In Gymnosperms, major portion of the secondary xylem composed of tracheids. In Angiosperms, tracheids occur with other xylem elements. In some primitive Angiosperms such as Drimys, Trochodendron, Tetracentron, the xylem composed only of tracheids (vessels absent).