<span>A cell is surrounded by water, there is also a lot of water inside.</span>
-The tail go together
The epiglottis. It prevents food from entering the respiratory tract
The Nacza Plate subducted beneath the South American Plate
The first invertebrates to show both segmentation and a complete digestive system belong to the phylum Annelida that includes earthworms, leech, sandworms, etc.
These segmented worms have complete digestive system which is also known as tube-within a tube. These can be found in freshwater, marine water or can even be terrestrial.
