One issue is to which President or Congress a particular year's deficit should be attributed. U.S. Congressional terms start on Jan. 1, Presidential terms later in January, and the fiscal year on Oct. 1, so none of them exactly match up.
These nephridia, which are called protonephridia, are branched tubules of ectodermal origin. They are closed at the internal ends by terminal cells, or solenocytes, and open to the exterior by means of excretory pores, or nephridiopores.
Giardia: Introduction. Giardia is the name of a type of parasite, Giardia lamblia. Giardia lamblia is a microscopic organism that can cause food borne illness or food poisoning. An infection of Giardia is also called giardiasis. Giardia infection is the most common food borne illness caused by a parasite.