Disturbing is a form of Disturb. Disturb is a synonym of Upset. Upset is similar to Ill. 
Survival is related to Eat. Eat is related to Action. 
Disturbing --FormOf--> Disturb <--Synonym--> Upset <--SimilarTo--> Ill 
Survival <--RelatedTo--> Eat <--RelatedTo--> Action 