In pteridophyta and gymnosperms which cells are present in place of companion cell
Sclereids
Albuminous cells
Idioblasts
None of the above
At maturity, which of the following is non-nucleated
Thick-walled and lignified with simple pits in walls and non-prosenchymatous cells without living protoplasm usually isodiametric or irregular in shape are
Angiosperms have
Given below are two statements :
Statement $I:$ Endarch and exarch are the terms often used for describing the position of secondary xylem in the plant body.
Statement $II:$ Exarch condition is the most common feature of the root system.
In the light of the above statements, choose the correct answer from the options given below:
Active division takes place in the cells of