The entire attraction has then been filled with sea water and a complete ecosystem of fish and crustaceans, 100,000 in all.
"Well, we want to control where things grow, to be sure we make a complete ecosystem," Rachel answered.
The latter is sometimes marketed as a complete ecosystem because a plant is included in the neck of the vase.
Multiple layers and levels of systems may be integrated to form a complete ecosystem.
A Park Service naturalist explains to visitors the complete marine ecosystem.
We believe it is necessary for any participant in this market to have a complete ecosystem.
But as always, security requires a complete ecosystem which is closed in order - with every part doing its job.
A complete and complex ecosystem has established itself when two months ago there was none.
A complete natural ecosystem requires little maintenance other than removal of non-native invasive species.
Nevertheless there is a complete ecosystem ... Do you understand?