1. no coral and jellies belong to the same scientific phylum (Called Cnidaria) because they have stinging cells called neumatacysts. but they are further seperated into different groups with corals belonging to Anthozoa and jellyfish to Schyphozoa. 2. there are soft corals and hard corals. the hard corals are the reef building corals because they make a calcium carbonate skeleton. the tissue of the coral is a very thin, sensitive, and delicate transparent layer on top of the skeleton. each coral usually has many polyps on it. Most corals (there are very few exceptions such as deep sea corals) are infected with single cell algae called zooxanthelle. many many zooxnthelle infect each polyp. It is the Zooxantelle that produce color and produce the energy (or food) for the coral. This is a classic example of Symbiosis, where 2 organisms work together and both benefit. 3. Coral bleaching occurs for many reasons, most commonly from warm temperature or exposure to air. what happens is the Zooxantellle leave the individual polyps. sometimes, if the problem is reversed quick enough, the zooxanthelle come back and the coral is saved. the coral turns white because the zooxantehelle are the color and once it leaves, the color is gone, there is no more food being produced, the coral dies, and the coral tissue is decomposed. 4. corals can reproduce asexually, and sexually, in mass spawning. we don't know exactly what triggers it, but something causes all the coral of on species to release millions gametes at once where the sperm and eggs mix and as the zygote grows, it settles tot he bottom and becomes a polyp. (in jellys this happens too, the polyp forms and sticks to the bottom, but as it grows, it becomes an upside down jellyfish and finally turns into a medusa jelly stage.) There has been some success in coral farming, which seems to be cheap and effective. Basically, a coral piece is cut with wire cutters (it is not soft, but it is like a weak bone, like a bird bone) the coral is glued onto a plastic stake and eventually the coral grows. it is not reproducing, but growing. 5. polyps don't find each other they use the Mass spawning events described in #4. there is literally soooo many eggs and sperm that the water sometimes turns cloudy and they float, so the eggs are fertilized. 6. Like I said, coral is bleached when the zooxantelle leaves. it is dead when the tissue is dead/gone. the polyps are still there on bleached coral, but the zooxanthelle are not, sometimes they return. dead coral cannot be revived. However, for a coral to begin growth, the polyp must land on a hard substrate (rock, concrete, coralline algae, dead coral). the dead coral provide a substrate for the new coral to start gr owning this explains why individual corals grow .5-20 cm a year, but coral communities (a combination of corals and algae) grows at 20-40 cm a year. 7. Not too sure what you're asking, but basically each coral grows and produces more polyps on it as it grows. one coral "mound" is called a zooid. polyps are usually very small and look like an upside down jellyfish. (polyp is the opposite of the medusa stage) 8. Corals are animals. they have 2 tissue types (like sponges, all other animals have 3). they are animals bbecausethe cannot produce their own energy. Plants use the sun to produce energy with pphotosynthesis the Zooxanthelle in the coral do this, but zooxanthelle are algae cells and not coral tissue! 9. Could be a mass spawning event I mentioned. But I think you got it confused with a plankton bloom. Plankton is ccompletelyunrelated to corals. plankton can be plants or animals or protists. some diatom (pprotists blooms are what causes Shellfish poisoning, usually affecting the nervous system. 10. the zooxanthele pphotosynthesisand produce food, and the coral tissue protects them. corals can also filter-feed, basically filtering aanywater that passes them. Jellyfish can eat many things from fish and squid to plankton. they have some sensory organs . they can detect smell though cchemicalcues and they have a nerve net which allows them to feel, kind of. 11. AAnemoneare another type of family in the Anthozoa gGroup with the corals. they do not become medusas like the jellies. Jellyfish do come from polyps, but they spend very little of their life as a tiny, small polyp and most of their life growing in the medusa stage. so that took extremely long, but hope that helps!
"1. Do coral polyps really grow into jellyfish?" No. They develop into maturer coral. "2. Corals are just skeletons right? And it's the polyps that live on it?" Some coral secrete a substance that forms a kind of limestone. I suppose you could call that some kind of skeleton if you like. I don't feel like doing nine more. Perhaps somebody else might happen along.
Corals get the most nutrients from the algae that live within their tissue. Some species eat small organisms like krill and plankton. Corals may also scavenge drifting organic debris like pieces of squids, shrimps, clams and small fish.
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Coral polyps eat zooplankton, which actually covers a wide variety of organisms. LOL. So, starting with the producers, you might have:
Producers: phytoplanktonic diatoms and dinoflagellates
Zooplanktonic copepods
Zooplanktonic shrimp (or juvenile stage of something larger)
coral
Crown of thorn starfish
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1. no coral and jellies belong to the same scientific phylum (Called Cnidaria) because they have stinging cells called neumatacysts. but they are further seperated into different groups with corals belonging to Anthozoa and jellyfish to Schyphozoa. 2. there are soft corals and hard corals. the hard corals are the reef building corals because they make a calcium carbonate skeleton. the tissue of the coral is a very thin, sensitive, and delicate transparent layer on top of the skeleton. each coral usually has many polyps on it. Most corals (there are very few exceptions such as deep sea corals) are infected with single cell algae called zooxanthelle. many many zooxnthelle infect each polyp. It is the Zooxantelle that produce color and produce the energy (or food) for the coral. This is a classic example of Symbiosis, where 2 organisms work together and both benefit. 3. Coral bleaching occurs for many reasons, most commonly from warm temperature or exposure to air. what happens is the Zooxantellle leave the individual polyps. sometimes, if the problem is reversed quick enough, the zooxanthelle come back and the coral is saved. the coral turns white because the zooxantehelle are the color and once it leaves, the color is gone, there is no more food being produced, the coral dies, and the coral tissue is decomposed. 4. corals can reproduce asexually, and sexually, in mass spawning. we don't know exactly what triggers it, but something causes all the coral of on species to release millions gametes at once where the sperm and eggs mix and as the zygote grows, it settles tot he bottom and becomes a polyp. (in jellys this happens too, the polyp forms and sticks to the bottom, but as it grows, it becomes an upside down jellyfish and finally turns into a medusa jelly stage.) There has been some success in coral farming, which seems to be cheap and effective. Basically, a coral piece is cut with wire cutters (it is not soft, but it is like a weak bone, like a bird bone) the coral is glued onto a plastic stake and eventually the coral grows. it is not reproducing, but growing. 5. polyps don't find each other they use the Mass spawning events described in #4. there is literally soooo many eggs and sperm that the water sometimes turns cloudy and they float, so the eggs are fertilized. 6. Like I said, coral is bleached when the zooxantelle leaves. it is dead when the tissue is dead/gone. the polyps are still there on bleached coral, but the zooxanthelle are not, sometimes they return. dead coral cannot be revived. However, for a coral to begin growth, the polyp must land on a hard substrate (rock, concrete, coralline algae, dead coral). the dead coral provide a substrate for the new coral to start gr owning this explains why individual corals grow .5-20 cm a year, but coral communities (a combination of corals and algae) grows at 20-40 cm a year. 7. Not too sure what you're asking, but basically each coral grows and produces more polyps on it as it grows. one coral "mound" is called a zooid. polyps are usually very small and look like an upside down jellyfish. (polyp is the opposite of the medusa stage) 8. Corals are animals. they have 2 tissue types (like sponges, all other animals have 3). they are animals bbecausethe cannot produce their own energy. Plants use the sun to produce energy with pphotosynthesis the Zooxanthelle in the coral do this, but zooxanthelle are algae cells and not coral tissue! 9. Could be a mass spawning event I mentioned. But I think you got it confused with a plankton bloom. Plankton is ccompletelyunrelated to corals. plankton can be plants or animals or protists. some diatom (pprotists blooms are what causes Shellfish poisoning, usually affecting the nervous system. 10. the zooxanthele pphotosynthesisand produce food, and the coral tissue protects them. corals can also filter-feed, basically filtering aanywater that passes them. Jellyfish can eat many things from fish and squid to plankton. they have some sensory organs . they can detect smell though cchemicalcues and they have a nerve net which allows them to feel, kind of. 11. AAnemoneare another type of family in the Anthozoa gGroup with the corals. they do not become medusas like the jellies. Jellyfish do come from polyps, but they spend very little of their life as a tiny, small polyp and most of their life growing in the medusa stage. so that took extremely long, but hope that helps!
"1. Do coral polyps really grow into jellyfish?" No. They develop into maturer coral. "2. Corals are just skeletons right? And it's the polyps that live on it?" Some coral secrete a substance that forms a kind of limestone. I suppose you could call that some kind of skeleton if you like. I don't feel like doing nine more. Perhaps somebody else might happen along.
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RE:
What do coral polyps eat ?
I'm making a food chain for the crown of thorns starfish and i need a little help !!
Corals get the most nutrients from the algae that live within their tissue. Some species eat small organisms like krill and plankton. Corals may also scavenge drifting organic debris like pieces of squids, shrimps, clams and small fish.