The correct answer is - physically dettering herbivory, protection from frost, and minimizing evaporation.
The plants have developed multiple traits that help them in multiple different circumstances, and some of those traits are the thorns and the hairs on their steams and leaves.
The thorns primarily serve for protection of the plant. They are very sharp and give a painful sting (occasionally poisonous one), so they are a physical protection from the herbivores that would try to eat parts of the plants.
The hairs have multiple functions. They are like a coat that helps the plant to not be affected by frost, help to stop the evaporation, and also partially manage to stop most of the insects that feed on plants.
 
        
                    
             
        
        
        
B. Chitin
that' because both animals and fungus are eukaryotic and heterotrophic, so they share same characterstics in terms of feeding and cellular structure. In addition to both share the same protist supergroup, which is (Unikonta).
 
        
             
        
        
        
These are small eukaryotes
        
             
        
        
        
B. Uteral is not a bone in the body.
        
             
        
        
        
Bathymetry is the measurement of
ocean depths, is the study of underwater depth of lake or ocean floors.  Bathymetry in other word is the underwater
equivalent to hypsometry or topography while Topography is the physical
geography or the shape and arrangement of landforms<span>. </span>