Where the word Prosth it is The mouth
Above that empty one is the brain
Beside the mouth empty box is Nephridia
Beside that is The ventral nerve cord
Beside that is the ventral blood Vessel
Beside that is Esophagus
* When i say beside that it is going left the way of the word before.
Hope it helps. Please comment if you are confsed
        
                    
             
        
        
        
Answer:
some sort of water system, (a river/groundwater/purification plant ect.)
Explanation:
 
        
             
        
        
        
Answer: D) Polygenic
Explanation: Polygenic inheritance describes the inheritance of traits that are determined by more than one gene. These genes, called polygenes, produce specific traits when they are expressed together. Polygenic traits have many possible phenotypes (physical characteristics) that are determined by interactions among several alleles. Examples of polygenic inheritance in humans include traits such as skin color, eye color, hair color, body shape, height, and weight.
 
        
             
        
        
        
Once entering the atmosphere the heated up water vapor (that's the process of evaporation) cools back down (the atmosphere is cooler than the Earth you see). it makes clouds Their it will condense until it's heavy enough to fall to Earth as precipitation!