Biology - Single MCQs (Page 178)

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Q1771. Compared to the diametre of metaxylem the diametre of protoxylem is?...Q1772. In trachaea the end walls are?...Q1773. In T.S. the trachaea appears?...Q1774. In T.S. the tracheid appears?...Q1775. In maize stem the vascular bundles are?...Q1776. Which of the following is absent in the phloem of monocots ?...Q1777. The last produced secondary xylem remains located near?...Q1778. Companion cells are?...Q1779. In dicot leaves the vascular bundles are?...Q1780. Secondary meristem gets activated from?...