Question

(4) When cambium is absent vascular bundle it is
called..............
(a) bicollateral
(b)closed
(C)open as well as closed
(d)only open​

Answer 1

Answer:

In the dicotyledonous stem, the cambium is found to be present in between xylem and phloem, such bundles are called open (for example, in Helianthus) and when the cambium is absent, it is called closed (for example, in monocotyledonous stems).

(b) Closed

Answer 2

Answer:

it is called closed.........