What happens when a ecosystem is in equilibrium.

the ecosystem is "Balanced"

Explanation:

Natural ecosystems are often incredibly sensitive to change, such as the introduction or removal of a species. A healthy ecosystem is said to be in equilibrium, which is a relatively stable state that keeps population sizes within a sustainable range (not too many of a certain species alive or dead). Consider the case of bears (who only eat fish) and salmon (who are only hunted by bears):

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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