2373
In addition , the effect of the pesticide acephate on AChE activity in the gill of C . hongkongensis was analyzed , and the mean inhibition concentration ( IC50 ) value was determined .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None