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.
How does a clam shell grow? A thin tissue that adheres to the inner surfaces of the shell, called the mantle, and a thickened rim of muscular tissue at the mantle edge deposit new shell material at the shell edge. Rings on the shell indicate how many years old a clam may be.