Threatened is the definition used when describing a species at risk of extinction
        
                    
             
        
        
        
Answer:
The substances presented after the reaction has occurred is called the product(s).
 
        
             
        
        
        
The body wall<span> of a star fish is made up of a thin cuticle, an epidermis with a single layer of cells, a thick dermis composed of connective tissue and a thin coelomic myoepithelial layer, which allows the longitudinal and circular musculature.</span>
 
        
             
        
        
        
Answer:
The major characteristic feature  of asexual reproduction is the production of clones.Identical offspring with virtually similar DNA.Therefore,this is advantageous to the parasite because, the offspring or progeny produce are similar(clones), to the parent parasites,thus multiple reproduction can occur  when a single individual  parasites cells divisions.
Explanation: