Even viruses, which are not considered living but organic molecules, are composed of proteins. Ribosomes are composed of ribosomal RNA and proteins. This RNA is synthesized and ribosome assembly takes place in the nucleolus of the nucleus in eukaryotes. Yes, all healthy animal cells contain ribosomes.
If you earn 5,000 points during your three-month challenge you then keep your gold status for a whole year and it only expires on February 28th of the following year. So whether you earn status on January 1 or December 31, 2014 your elite status is valid until February 2016 (a bit of an odd rule, but thatâs how it works with AA).
To complete a challenge you must call the airline, choose a start date, and pay $120 for the Gold challenge or $250 for the Platinum challenge. For the Gold elite status challenge, rather than trying to earn 25,000 miles in a year, you can earn status in three months by earning 5,000 miles. Earn 5,000 miles in 3 months to get American Airlines Gold Status. The points you earn with American Airlines depend on the miles flown and the fare purchases.