Answer:Estuaries
Explanation:
Estuaries are areas where freshwater streams or rivers merge with the ocean. This mixing of waters with such different salt concentrations creates a very interesting and unique ecosystem
I believe the answer to this question is the filtrate is reabsorbed.
This is brought into the system because it still contains the useful products for other biological processes. Thank you for your question. Please don't hesitate to ask in Brainly your queries.
Even the cell membrane is like the cell wall its flexible and lets certain things in and certain things out.