A organism is anything living so almost forever
The organism has been in the country and state for around 50 years. It likely arrived through international trade and transport of goods.
Billion of years,if there is life,there are organisms
If there is life, there is organism. It existed billion of years ago.
The organism has been present in this country and state for many years, with specific arrival times varying depending on the species. Invasive species may have been introduced within the last few decades, while native species have always been part of the local ecosystem. It is essential to consult detailed historical records or scientific studies for accurate information on the introduction and establishment of specific organisms.
Haiti is not a communist country and never has been.
Koalas are not invasive. They are native to Australia, and have not been introduced to any other country.
Transylvania is not a country. It is a region in Romania.
Since 1776
since 1898
About 85 years
There are athletes from many countries in the Olympics. Which country are you asking about?
This depends on your definition of country. Poland has been its own country, the Republic of Poland, since 1989.