Centi represents the smallest value
        
             
        
        
        
The thyroid gland hope this helps #ZedTheZom
        
                    
             
        
        
        
The pond is considered as a the crayfish's
A) habitat
This is because the pond is where the crayfish lives and where it gets its food. It does not stray far from it and go back to it just to get food. It stays in the same location.<span />
        
             
        
        
        
I believe the order is...
Producers
Primary Consumers
Secondary Consumers
Tertiary Consumers
I hope this helps!