The phloem of angiosperms differs from that of other vascular plants by the presence of

Tracheids of angiosperms are recognised by the presence of

Which of the following tissues provides mechanical support to the growing parts of the plant such as the petiole of a leaf and young stem?

What are the long,pointed sclerenchymatous cells called?

Phloem parenchyma is absent in

The first formed primary phloem is referred to as $A$. The later formed primary phloem is referred to as $B$. Choose the correct combination of $A$ and $B$.