Question: The nephron (from Greek -- nephros, meaning "kidney") is the microscopic structural and functional unit of the kidney. It is composed of a renal corpuscle and a renal tubule. The renal corpuscle consists of a tuft of capillaries called a glomerulus and an encompassing Bowman's capsule. The renal tubule extends from the capsule. The capsule and tubule are connected and are composed of epithelial cells with a lumen. A healthy adult has 0.8 to 1.5 million nephrons in each kidney. Blood is filtered as it passes through three layers: the endothelial cells of the capillary wall, its basement membrane, and between the foot processes of the podocytes of the lining of the capsule. The tubule has adjacent peritubular capillaries that run between the descending and ascending portions of the tubule. As the fluid from the capsule flows down into the tubule, it is processed by the epithelial cells lining the tubule: water is reabsorbed and substances are exchanged (some are added, others are removed); first with the interstitial fluid outside the tubules, and then into the plasma in the adjacent peritubular capillaries through the endothelial cells lining that capillary. This process regulates the volume of body fluid as well as levels of many body substances. At the end of the tubule, the remaining fluid -- urine -- exits: it is composed of water, metabolic waste, and toxins.

Answer this question: what is the microscopic unit of the kidney?
Answer: The important part for answering this question is: The nephron (from Greek -- nephros, meaning "kidney") is the microscopic structural and functional unit of the kidney. The answer is The nephron ( from Greek -- nephros , meaning '' kidney '' ).

Question: Passage: "Always on My Mind" is a song by Johnny Christopher, Mark James, and Wayne Carson, recorded first by Gwen McCrae (as "You Were Always on My Mind") and Brenda Lee in 1972. The song has been a crossover hit, charting in both the country and western and pop categories.

Question: Based on this passage, who sang the song you were always on my mind?
Answer: This is the relevant information: "Always on My Mind" is a song by Johnny Christopher, Mark James, and Wayne Carson, recorded first by Gwen McCrae (as "You Were Always on My Mind") and Brenda Lee in 1972. The answer is Johnny Christopher , Mark James , and Wayne Carson , recorded first by Gwen McCrae ( as '' You Were Always on My Mind '' ) and Brenda Lee in 1972.

Question: The practice of sports in Argentina is varied due to the population's diverse European origins and the mostly mild climate. Association football is the most popular discipline and other sports played both professionally and recreatively athletics, auto racing, basketball, boxing, cycling, field hockey, fishing, golf, handball, mountaineering, padel tennis, polo, roller hockey, rowing, rugby union, sailing, skiing, swimming, tennis and volleyball. Argentine achievements can be found in team sports such as association football, basketball, field hockey and rugby union, and individual sports such as boxing, golf, tennis and rowing. Pato, the national sport, is not very popular.

Answer this question: what is the most famous sport in argentina?
Answer: To answer the above question, the relevant sentence is: Association football is the most popular discipline and other sports played both professionally and recreatively athletics, auto racing, basketball, boxing, cycling, field hockey, fishing, golf, handball, mountaineering, padel tennis, polo, roller hockey, rowing, rugby union, sailing, skiing, swimming, tennis and volleyball. The answer is Association football.

Question: Context: Princess Fiona is a fictional main character who serves as the female lead in DreamWorks' animated Shrek film series. She made her first appearance in the first film in the franchise, Shrek (2001), voiced by American actress Cameron Diaz.

Question: who does the voice of fiona in shrek?
Answer:
To answer this question, we should know that: She made her first appearance in the first film in the franchise, Shrek (2001), voiced by American actress Cameron Diaz. The answer is American actress Cameron Diaz.