A bony fish's digestive system is an extracellular process - the food in ingested, taken into the stomach where acid and compression works to break it down. It then transits into the intestinal system where it is completely broken down and the nutrients absorbed into the blood stream. At this point the nutrients will go from extracellular to intracellular as they are absorbed by the body tissues from the blood stream.
fishs eddy
NO
deers or fishs
bass, bream,
The Indian & Pacific Oceans .
sharks and more
chalk goby
Gills
His fish are named Brock and Swimmy
what do fish eat
Increases the fish's volume by filling the swim bladder with oxygen.
This is not a Betta question so it belongs elsewhere.