they open up their pores and let it out...
In the sand
You can not cheat to get sand dollars. You have to work for it, or you have to buy it.
only if they are still alive, if they are still alive return to water, if dead you can collect.
The waste of sand is known as "foundry sand waste" and it is generated during the production of metal castings. This waste typically includes used sand from the casting process, which may be contaminated with metals and other substances, making it difficult to reuse in manufacturing. Proper disposal and management of foundry sand waste are important to prevent environmental pollution and promote sustainable practices.
Sand dollars.
Sand dollars breathe through a process known as diffusion, using their tube feet.
sand dollars got there name because they are shaped like a coin and they dig themselves into the sand
Phylum Echinodermata
Sand dollars don't protect themself, they just sit their........ :)-
what is the sand dollars kingdom
waste waste waste