The Portuguese Man O’ War is a marine cnidarian. Its venomous tentacles deliver a painful sting. It is also a siphonophore. This means that it is a colony of specialized individuals called zooids. These zooids are attached to one another. They can not survive on their own. The name man o’ war comes from its resemblance to a portuguese war ship at full sail. The Man o’ War lives at the surface of the ocean. Its gas-filled bladder stays at the surface, while the tentacles and the rest of it stays submerged. It is most commonly found in tropical and subtropical regions.
Jellyfish have no specific cardiovascular system. Oxygen is easily absorbed through their thin bodies. They use diffusion to circulate materials throughout their bodies. Almost every cell in their bodies is in direct contract with the nutrients it needs.
Jellyfish have no specific cardiovascular system. Oxygen is easily absorbed through their thin bodies. They use diffusion to circulate materials throughout their bodies. Almost every cell in their bodies is in direct contract with the nutrients it needs.