The function contains all the GO-terms associated with the genes of an organism and their levels.
If "BP", "MF" or "CC" the GO-terms from the whole ontology is return and their levels.
The supported organisms are "Homo sapiens / Human", "Rattus norvegicus / Rat", "Mus musculus / Mouse",
"Danio rerio / Zebrafish", "Caenorhabditis elegans / Worm" ,"Arabidopsis thaliana / Cress",
"Saccharomyces cerevisiae / Yeast", "Schizosaccharomyces pombe / Fission yeast",
"Drosophila melanogaster / Fruit fly", "Escherichia coli / E.coli".