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Ha Ho Hy

homeostasis

PR: /ˌhəʊ.mi.əʊˈsteɪ.sɪs/   IT: omeostasi DEF: the ability or tendency of a living organism, cell, or group to keep the conditions inside it the same despite any changes in the conditions around it, or this state of internal balance. (Definition from the Cambridge Academic Content Dictionary © Cambridge University Press)  

host cell

PR:  /həʊst sel/   IT: cellula ospite DEF: a living cell that serves as a shelter and a food source to the foreign organism. (Definition from “Biology on line“)