Some vascular bundles are described as open because these

  • [AIPMT 2011]
  • A

    are surrounded by pericycle but no endodermis

  • B

    are capable of producing secondary xylem and phloem

  • C

    possess conjunctive tissue between xylem and phloem

  • D

    are not surrounded by pericycle.

Similar Questions

Complex tissue includes

In the first formed primary xylem the secondary wall thickening may be of

$A$. According to Clowes root apex consists of an inverted cup like structure.
$B$. Low amount of $RNA$, $DNA$ and protein is characteristic of waiting meristem.
$C$. Cells of reserve meristem can divide only when the root apex gets injured.

Plerome gives rise to

The plant which reproduces by apical meristem is