The breaking down of food in the mouth is the first step of the digestive process, It’s important because the food gets broken down into a form that can be absorbed and used.
        
             
        
        
        
The slide should be moved when viewing under a high power magnification because if we move it the structure that we are observing may change and sometimes the organism that we are observing may fell down
Hope my answer is helpful to you
        
             
        
        
        
Answer and Explanation:
Platyhelminthes are mostly worm like organisms that are dorsoventrally flattened, meaning they look like a leaf and this is why they are coined names like the Tapeworm, Flatworm, Fluke and Planarian.
 Most Platyhelminthes are parasites on other animals but only the Turbellarians are mostly non-parasitic. A few species are commensalists, or mutualists living with other larger organism.
They are classified into:
- Class Turbellaria 
- Class Monogenea 
- Class Trematoda 
- Class Cestoda
 
        
             
        
        
        
It has no definite nucleus but a region containing chromosome called nucleoid.
        
                    
             
        
        
        
Precipitation<span> is </span>water<span> released from clouds in the form of rain, freezing rain, sleet, snow, or hail.</span>