Which one is not a trait of xerophytes?

Presence of vessels in the wood is:

Which of the following shows physiological xerophytic characters?

Which of the following are vessel-less angiosperms?

The process of extraction of separated $DNA$ strands from gel is called elution.
$(a)$ In roots,xylem and phloem in a vascular bundle are arranged in an alternate manner along the different radii.
$(b)$ Conjoint closed vascular bundles do not possess cambium.
$(c)$ In open vascular bundles,cambium is present in between xylem and phloem.
$(d)$ The vascular bundles of dicotyledonous stem possess endarch protoxylem.
$(e)$ In monocotyledonous root,usually there are more than six xylem bundles present.
Choose the correct answer from the options given below:

The branch of botany that deals with the study of the internal organization of plants is: