4879
Long - term toxicant exposure can result in acquired tolerance to this stressor at the population or community level , but an associated cost of tolerance may be the reduced potential for tolerance to subsequent climatic stress ( or vice versa ) .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None