Respuesta :
Answer:
The appositive phrase and the noun it renames or identifies are:
"an astronaut; father"
Explanation:
An appositive is a noun or a noun phrase placed beside a noun which helps in identifying the other. It helps in renaming the other noun. In the above sentence, 'an astronaut' is the appositive phrase while 'father' is the noun which renames it. The phrase and the noun functions as a single unit.