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.
Definition. Beriberi is a condition caused by severe prolonged deficiency of vitamin B1 (also known as thiamine). Beriberi refers to a constellation of heart, gastrointestinal, and nervous system problems from thiamine deficiency.eriberi is a condition caused by severe prolonged deficiency of vitamin B1 (also known as thiamine). Beriberi refers to a constellation of heart, gastrointestinal, and nervous system problems from thiamine deficiency.