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Shellfish Poisoning
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Shellfish are very poisonous to humans. There poisoning is caused by a group of toxins elaborated by plank tonic algae which the shellfish feed on. The toxins are accumulated and sometimes metabolized by the shellfish. The 20 toxins responsible for paralytic s (PSP) are all derivatives of saxitoxin ....
Middle of essay
...., disorientation, seizure, coma).
Jellyfish in spite of their name - are actuality is not fish. They are invertebrates, which are relatives to the sea anemones and corals. True jellyfish belong to the Phylum: Cnidaria, - class Scyphozoan. Some other animals that are similar in general appearance, such as the Portuguese man o' war, are often called jellyfish, but though they are related, scientists do not regard them as true jellyfish.
Most jellyfish have three main parts: the round umbrella-li.... |
| Number of words: 874 |
Approximate pages: 4 |
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