The cleanliness of a ecosystem or how healthy it is. It determines how clean an environment/ecosystem is. You need all types of animals living there, therefore making it more healthy. The more healthy, the more we can say that it is biodiverse. 
        
             
        
        
        
Answer: Genus
From largest to smallest, the pyramid of binomial nomenclature goes: kingdom, phylum, class, order, family, genus, species.
        
             
        
        
        
Answer:
I would write a question about relationships between predators and prey of a given ecosystem.
Explanation:
An example question is:
 a.) "Draw a predator-prey graph that shows the relationship between lions and zebras."
 b.) "Explain the trends of the above graph with regard to increase and decrease of the prey of predators."
I hope that made sense :)
Good luck.
 
        
                    
             
        
        
        
Larches trees are usually grown as an ornamental plants, that is, they are grown for their beauty. They are deciduous conifers and evergreen plants. Larches typically need cold climate and plenty of water to grow and they are found in large quantity in Northern Europe, Asia and America.
Larches trees in Siberia are not harvested much because they are majorly planted as ornamental plants.