Answer:
Stems and root
Explanation:
Auxins facilitate stem elongation while inhibiting axillary bud formation, ensuring apical dominance. The root, branches, and stem and tip all contain them. Hydroxy Acetic Acid is a perfect example. Auxin is indeed a growth hormone that facilitates cell elongation and is formed in the stem tip.
 
        
                    
             
        
        
        
Answer:  how a virus differs from a cell...
It doesn’t contain any kind of cytoplasm, cell wall, cell membrane, ribosome or mitochondrion.
It doesn’t have any sort of metabolic enzyme of its own. So, no nutrition system is seen.
It can’t reproduce itself, without any help of the host living cell.
It can be crystallized, centrifuged or diffused.
It doesn’t have any sort of somatic development.
Chemically, its just a fusion of protein and nucleic acid. So, this characters differ a Virus from a living cell.
Explanation: