Tracheids

  • A

    Are the dominant cell types of xylem in angiosperms

  • B

    Are primarily found in mosses and liverworts

  • C

    Are responsible for water conduction and support in many land plants

  • D

    First appeared during Palaeozoic era

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Which of the following have sunken stomata

For a critical studyof secondary growth in plants, which one of the following pairs is suitable ?

  • [AIPMT 2007]

Which of the following plants have a watery latex

$I.$ Sunflower seed

$II.$ A wheat leaf

$III.$ Pea plant

$IV.$ Leaf blade of grass

Bulliform cells are present in which of the above plants?

Vascular bundles in the stem of Cucurbita or Lagenaria are

  • [AIIMS 1992]