Homeostasis is the attempt to maintain stable conditions (particularly in an organism). It is done by using feedback loops (positive and negative).
        
             
        
        
        
The first one is going to be b and the second one is going to be a
        
                    
             
        
        
        
There are fewer phytoplanktons in the mesopelagic zone because of LOWER LIGHT LEVELS. It is the area of the ocean that is just below the epipelagic zone. This area of the ocean extends from a depth of 200 to 1000 meters.
        
                    
             
        
        
        
It’s B genetically engineered trees could have unexpected interactions with organisms of natural ecosystems.
        
                    
             
        
        
        
To calculate the mass of a single atom, you would need to add up the protons and neutrons of a single atom.