A protein that is said to be denatured means that its tertiary structure is caused to unfold possibly by heat, alkali, acid, or by other chemical or physical means, making the molecule lose its original state and become biologically inactive.
Education and Training Requirements. Individuals interested in becoming a host or hostess should take courses in business, arithmetic, bookkeeping, family and consumer science, and public speaking. Hosts and hostesses should be friendly and outgoing people who can remain calm and courteous during rush periods.
N-400 Eligibility Requirements. In order to apply for U.S. citizenship, you must meet the following requirements: Be at least 18 years old. Have had a valid Green Card at least five years. If you are married to U.S. citizen you may apply after three years with a valid Green Card.