1.

Annual rings are the bands ofA. Secondary cortex and corkB. Secondary vascular tissuesC. Secondary xylem and medullary raysD. Secondary phloem and medullary rays

Answer» Correct Answer - B
Spring wood + Autumn wood of a year constitute annual ring. Spring and Autumn wood is the part of seondary xylem formed during spring and autumn. The amount of wood is affected by the activity of cambium.


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