Which of the following would disappear first if an estuary was destroyed

Could you elaborate?

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

Pancreassalivary glandsliverlachrymal glandssweat glandoil glandsgoblet cells