In myths, rosemary has a reputation for improving memory and has been used as a symbol for remembrance during war commemorations and funerals in Europe and Australia.Mourners would throw it into graves as a symbol of remembrance for the dead.n myths, rosemary has a reputation for improving memory and has been used as a symbol for remembrance during war commemorations and funerals in Europe and Australia.
Up close: Gills. The clam gills play an interesting role in the clam's survival. The gills have two functions in two separate systems of the clam. For the digestive system, the gills aide in digestion through separating silt from the nutrition and aids in the respiratory system through providing oxygen to the clam.
A transparent shrimp lurks nearly unseen amid the tentacles of a sea anemone. An anemoneâs tentacles surround a central mouth, which feeds the invertebrateâs single body cavity. That one cavity performs the roles of the stomach, intestines, lungs, circulatory system, and other critical bodily systems.