Vessel less angiosperms are
Hydrilla
Trochodendron
Tetracentron
All the above
Thick-walled and lignified with simple pits in walls and non-prosenchymatous cells without living protoplasm usually isodiametric or irregular in shape are
Which of the following contain xylem vessel
Collenchyma is a type of mechanical tissue but it is not as efficient as sclerenchyma. However, it has certain advantages like
Vessels are mainly found in