The virus life cycle could be divided into six steps: attachment, penetration, uncoating, gene expression and replication, assembly, and release.
The aswer is b. Vascular Cambium
it is a plant tissue which is located between Xylem and Phloem in the stem and root of a vascular plant and the source that produces Secondary xlem and phloem
Nb : Vascular Cambium does not transport waters , minerals, it only produce Xylem and Phloem which add the tree's girth
1.It is not natural.
2.It can came up with side effects and unbalance some species.
Definition cell, nucleus, chromosome, DNA, nucleotide
