Lissoclinum patella Lissoclinum patella Lissoclinum patella is a species of ascidian in the family Didemnidae. "Lissoclinum patella" is a sprawling ascidian that grows in coastal areas near Indonesia and Australia, including the Great Barrier Reef. Its green hue is due to the colonies of cyanobacteria that grow within its tissue as symbionts, one known species is Prochloron didemni. The biochemical products of its cyanobacteria is an active area of research, as example the circular peptide, Patellamide A. This species is found in the tropical eastern Indian Ocean and the western Pacific Ocean. Its range includes the Philippines, Indonesia and northern Australia. Its
Composition of the human body Not all elements which are found in the human body in trace quantities play a role in life. Some of these elements are thought to be simple bystander contaminants without function (examples: caesium, titanium), while many others are thought to be active toxics, depending on amount (cadmium, mercury, radioactives). The possible utility and toxicity of a few elements at levels normally found in the body (aluminium) is debated. Functions have been proposed for trace amounts of cadmium and lead, although these are almost certainly toxic in amounts very much larger than normally found in the body. There is evidence that