Answer:
Matter in an ecosystem: 
- must be continuously replenished
- is recycled and reused
-  is returned to the earth by decomposers 
 
        
                    
             
        
        
        
Answer:
Apple tree 
Explanation:
because it produces apples and we eat them 
 
        
                    
             
        
        
        
It is the producers. They make their own food and are food for the consumers to eat. Like us the, Humans.
        
                    
             
        
        
        
Answer:
Explanation:
The proteins in enzymes are usually globular. The intra and intermolecular bonds that hold proteins in their secondary and tertiary structures are disrupted by changes in temperature and pH. This affects shapes and so the catalytic activity of an enzyme is pH and temperature sensitive.
 
        
             
        
        
        
Answer:
Cabbage is a different story. Per capita consumption of it peaked way back in the 1920s, when the average American ate 22 pounds of it per year. Nowadays, we eat about eight pounds, most of it disguised as cole slaw or sauerkraut.
This makes it pretty interesting that kale and cabbage — along with broccoli, Brussels sprouts, cauliflower, collard greens, and kohlrabi, and several other vegetables — all come from the exact same plant species: Brassica oleracea.
In some circles, kale has become really, really popular. Once a little-known speciality crop, its meteoric rise is now the subject of national news segments. Some experts are predicting that kale salads will soon be on the menus at TGI Friday's and McDonald's.