Cnidarias!
Cnidaria is a phylum containing over 10,000 species of animals found exclusively in aquatic and mostly marine environments. Their distinguishing feature is cnidocytes, specialized cells that they use mainly for capturing prey. Their bodies consist of mesoglea, a non-living jelly-like substance, sandwiched between two layers of epithelium that are mostly one cell thick. They have two basic body forms: swimming medusae and sessile polyps, both of which are radially symmetrical with mouths surrounded by tentacles that bear cnidocytes. Some jellyfish are even found in freshwater lakes, such as the freshwater jellyfish (Craspedacusta sowerbyi), which haunts several lakes in New Zealand. Not to worry though, these jellyfish are harmless to humans and feed mainly on zooplankton. copy from :http://en.wikipedia.org/wiki/Cnidarian. All live under water; most live in the oceans and seas, and a few live in freshwater. But they mostly live in saltwater or oceans. Their examples are Jellyfish, Corals and Sea Anemones. copy from: http://www.answers.com/Q/Where_do_Cnidarians_liveCnidarians are an entirely aquatic phylum of animals. They include jellyfish and corals, along with some lesser known creatures. Most species are marine, but a few burrow under the seafloor or live in freshwater lakes and rivers.
Cnidarians live in waters ranging from polar to tropical. They are a very ancient phylum and have survived environmental changes in the world's waterways from the late Precambrian onward. Although there are species which live in very cold water, such as in the Arctic Ocean, global warming has been blamed for increasing numbers of jellyfish blooms in more temperate waters. Jellyfish are important to oceanic ecosystems as both predator and prey, but other cnidarians play an even more vital environmental role.
The largest and most extensive collection of coral is found in the tropical waters off the coast of northeastern Australia. The Great Barrier Reef is an ecosystem unto itself, supporting 1,500 kinds of fish and 4,000 kinds of mollusks, in addition to the 400 species of coral which make up the reef and many species of sea anemone, another kind of cnidarian. Other coral reefs exist in warm, shallow waters around the world, especially off the eastern edge of small islands. They prefer temperatures between 68 and 82 degrees Fahrenheit and locations with plenty of breaking waves to sweep in nutrients. copy from: http://www.ask.com/science/cnidarians-live-c128c9f36c698b24
Cnidarians are an entirely aquatic phylum of animals. They include jellyfish and corals, along with some lesser known creatures. Most species are marine, but a few burrow under the seafloor or live in freshwater lakes and rivers.
Cnidarians live in waters ranging from polar to tropical. They are a very ancient phylum and have survived environmental changes in the world's waterways from the late Precambrian onward. Although there are species which live in very cold water, such as in the Arctic Ocean, global warming has been blamed for increasing numbers of jellyfish blooms in more temperate waters. Jellyfish are important to oceanic ecosystems as both predator and prey, but other cnidarians play an even more vital environmental role.
The largest and most extensive collection of coral is found in the tropical waters off the coast of northeastern Australia. The Great Barrier Reef is an ecosystem unto itself, supporting 1,500 kinds of fish and 4,000 kinds of mollusks, in addition to the 400 species of coral which make up the reef and many species of sea anemone, another kind of cnidarian. Other coral reefs exist in warm, shallow waters around the world, especially off the eastern edge of small islands. They prefer temperatures between 68 and 82 degrees Fahrenheit and locations with plenty of breaking waves to sweep in nutrients.
. .........,.............,...................ans..
Cnidarians live in waters ranging from polar to tropical. They are a very ancient phylum and have survived environmental changes in the world's waterways from the late Precambrian onward. Although there are species which live in very cold water, such as in the Arctic Ocean, global warming has been blamed for increasing numbers of jellyfish blooms in more temperate waters. Jellyfish are important to oceanic ecosystems as both predator and prey, but other cnidarians play an even more vital environmental role.
The largest and most extensive collection of coral is found in the tropical waters off the coast of northeastern Australia. The Great Barrier Reef is an ecosystem unto itself, supporting 1,500 kinds of fish and 4,000 kinds of mollusks, in addition to the 400 species of coral which make up the reef and many species of sea anemone, another kind of cnidarian. Other coral reefs exist in warm, shallow waters around the world, especially off the eastern edge of small islands. They prefer temperatures between 68 and 82 degrees Fahrenheit and locations with plenty of breaking waves to sweep in nutrients. copy from: http://www.ask.com/science/cnidarians-live-c128c9f36c698b24
Cnidarians are an entirely aquatic phylum of animals. They include jellyfish and corals, along with some lesser known creatures. Most species are marine, but a few burrow under the seafloor or live in freshwater lakes and rivers.
Cnidarians live in waters ranging from polar to tropical. They are a very ancient phylum and have survived environmental changes in the world's waterways from the late Precambrian onward. Although there are species which live in very cold water, such as in the Arctic Ocean, global warming has been blamed for increasing numbers of jellyfish blooms in more temperate waters. Jellyfish are important to oceanic ecosystems as both predator and prey, but other cnidarians play an even more vital environmental role.
The largest and most extensive collection of coral is found in the tropical waters off the coast of northeastern Australia. The Great Barrier Reef is an ecosystem unto itself, supporting 1,500 kinds of fish and 4,000 kinds of mollusks, in addition to the 400 species of coral which make up the reef and many species of sea anemone, another kind of cnidarian. Other coral reefs exist in warm, shallow waters around the world, especially off the eastern edge of small islands. They prefer temperatures between 68 and 82 degrees Fahrenheit and locations with plenty of breaking waves to sweep in nutrients.
. .........,.............,...................ans..