Phloem in gymnosperms lacks
Albuminous cells and sieve cells
Sieve tubes only
Companion cells only
Both sieve tubes and companion cells
Distinguish between the following : Protoxylem and metaxylem
Fibres associated with phloem are...... .fibres.
Lignified cell wall is the characteristic feature of
Aerenchyma is formed in the tissue of
Schlerenchyma tissue.