4881
Ecological modeling based on species traits ( representing life - history traits , population vulnerability , sensitivity to toxicants , and sensitivity to climate change ) can be a promising approach for predicting combined impacts of GCC and toxicants on populations and communities .
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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:
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