5048
Our previous studies indicated the ability of Cd to disturb the gene expression of MSH6 in zebrafish ( Danio rerio ) embryos .
 Chemical: Cd
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: Cd 
Answer:
 Chemical: Cd