In order to study the formation of cancer cells, you should study the life cycle of normal cells as cancer cells are abnormal cells. 
Actually, Normal cells grow, divides and died after an interval of time. And when this process is break down, cancer cells begin to form. They are usually old cells which don't die after their life cycle.
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Answer:
Explanation: The answer would be water because , nuclear power plant would heat the water so that it could produce steam .
 
        
             
        
        
        
Answer:
The tundra ecosystem is one of the coldest ecosystem on the earth, which has few trees, high winds, much snow, and low rainfall. Some of the species found in that environment are arctic foxes, caribou, and polar bears.
Explanation:
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Answer:
 A
Explanation:
 because bacteria grows small till it dies