Culture container, and system and method of transferring a cultured organism between culture containers

A transfer system comprising:

• a first conveyor system for transporting at least a first culture container along a first path, wherein the first culture container includes a first tube having two openings at two opposite ends thereof and a removable first cover attached to one of the two openings of the first tube, the first cover including a first receptacle for holding a substance consumable by an organism of interest, the first receptacle being enclosed inside the first tube when the first cover is attached to the first tube;
• a second conveyor system for transporting at least a second culture container along a second path, wherein the second culture container includes a second tube having two openings at two opposite ends thereof and a removable second cover attached to one of the two openings of the second tube, the second cover including a second receptacle for holding a substance consumable by an organism of interest, the second receptacle being enclosed inside the second tube when the second cover is attached to the second tube;
• and
• an exchanging unit disposed between the first and second conveyor systems, the exchanging unit being operable to interchange the first and second covers between the first and second culture containers so that the first cover is attached to the second tube and the second cover is attached to the first tube.