Sponges are simple invertebrate animals that live in aquatic habitats. “While not much is known about the lifespan of sponges, some massive species found in shallow waters are estimated to live for more than 2,300 years,” the study authors write. Sponges can live for hundreds or even thousands of years. Some of these compounds are antibiotics that prevent pathogenic bacterial infections, and others are toxins that are poisonous to predators that consume the sponge. Sponges also defend themselves by producing chemically active compounds. ![]() The pointed sponge spicules function as one method of defense against predators. Most sponges reproduce sexually, although asexual reproduction may also occur. Digestion of the food particle takes place inside the cell. The food particles are caught by the collar of the choanocyte and brought into the cell by phagocytosis. The sponges draw water carrying food particles into the spongocoel using the beating of flagella in the choanocytes. ![]() Cells in the sponge walls filter food from the water as the water is pumped through the body and out other larger openings. ![]() Sponges have tiny pores in their outer walls through which water is drawn. What is the nickname for giant barrel sponges?Īs sponges don’t have mouths, they must feed by some other method.What animal on earth lives the longest?.How much water can a sponge pump through their body a day?.
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