The stiffness of the medium depends on the speed of sound ; If the medium was more stiff, the sound would travel more quickly because the particles of the medium are compressed and spread out again; Sound also travels better over long distances in stiff objects because sound waves lose energy more slowly than in a less stiff object
Share this page: Greninja's egg groups: Water 1. The egg moves for Greninja are listed below, alongside compatible parent PokÃ©mon it can breed with. You will need to breed a female Greninja with a compatible male PokÃ©mon, with either one knowing the egg move in question. Alternatively, if you already have a Greninja with the egg move it can breed with Ditto.
The skeleton of the sponge is composed of tiny needle-like splinters called spicules, a mesh of protein called spongin, or a combination of both. Many sponges can only be identified by microscopic examination of the skeleton, which makes certain identification from photographs difficult.he collar cells have a sticky, funnel shaped collar and a hairlike whip, called a flagellum. The collar cells serve two purposes. First, they beat their flagella back and forth to force water through the sponge. The water brings in nutrients and oxygen, while it carries out waste and carbon dioxide.