Coral reef. Coral reefs are diverse underwater ecosystems held together by calcium carbonate structures secreted by corals. Coral reefs are built by colonies of tiny animals found in marine water that contain few nutrients. Most coral reefs are built from stony corals, which in turn consist of polyps that cluster in groups. The polyps belong to a group of animals known as Cnidaria, which also includes sea anemones and jellyfish. Unlike sea anemones, corals secrete hard carbonate exoskeletons which support a
Ketamine Street Names. Ketamine is a dissociative anesthetic that can cause the user to feel out of his or her body. The term dissociative means that the user will disassociate with him or herself while under the influence of the drug. This can cause a wide array of reactions including adverse behaviors, odd patterns of thought and erratic actions.
In its pure form, PCP is a white crystalline powder that readily dissolves in water or alcohol and has a distinctive bitter chemical taste. On the illicit drug market, this substance contains a number of contaminants causing the color to range from a light to darker brown with a powdery to a gummy mass consistency.epending on how PCP is used, it can have stimulant, depressant, or hallucinogenic actions. In monkeys PCP is about 10 times stronger than ketamine. Its sedative and anesthetic effects are trance-like, and patients experience a feeling of being âout of bodyâ and detached from their environment.