Answer:
1 km= 1000 meters
9 km= 9000 meters
19 km= 19000 meters
9000
+19000
----------
28000 meters
Explanation:
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Explanation:
 
        
             
        
        
        
Paramecia feed on microorganisms like bacteria, algae, and yeasts. To gather food, the Paramecium makes movements with cilia to sweep prey organisms, along with some water, through the oral groove (vestibulum, or vestibule), and into the cell.
 
 
        
                    
             
        
        
        
The answer is C.
A. There is no exchange of water between organisms.
B. A single organism is excreting fluid. This will then evaporate into the atmosphere. No exchange takes place.
C. An animal consuming an organism involves two organism that both contain water. One absorbs the other’s water through digestion.
D. A plant absorbs nutrients from the soil. This could also be correct as there are organisms in the soil losing water through decay. However those organisms aren’t identified in the statement. This means that C. is the best answer.
        
             
        
        
        
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