23020
In many toxicological and ecotoxicological studies and experimental setups , the investigator is mainly interested in traditional parameters such as toxicity data and effects of toxicants on molecular , cellular or physiological functions of individuals , species or statistical populations .
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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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