You just got done with a long run. You are gasping for air. Why does your body react this way? What is the purpose of breathing? All the cells of your body need oxygen to work properly. Your bodys circulatory system works with the respiratory system to deliver the oxygen. Your blood carries red blood cells. The main job of red blood cells is to carry oxygen throughout your body. The red blood cells get oxygen in the lungs. The lungs are the main organs of the respiratory system. The respiratory system is the body system that takes in oxygen. It then releases carbon dioxide back to the atmosphere. The carbon dioxide is the waste material from the cells.

Question: "What cells carry oxygen to the lungs?"

Response: "White blood cells"

A: no

The next evening, she arrived with a stack of glistening stopboxes containing sushi, sashimi, oysters in their shells, and Terran vegetables fresh plucked from their hydroponic beds. Wondering about the reason for her extravagance, I asked how work had gone that day. "Emil came in. He's taking Dream's End." "Emil?" "You've no memory left, old one. Emil Malaquez." You did that to test my affections." "What?" "Calling him by his first name. I did that in a comedy once.'Nights with Karl and Groucho.' It was before your time." "The critics liked it." "I'm glad." A moment later: "That's not why I called him 'Emil'." "No. We lunched together. He's nice."

Question: "What makes the older speaker wonder about the female speaker's extravagance?"

Response: "Emil Malaquez"

A: no

To make certain the U.S. was aware of the danger, in July 1939, a few months before the beginning of World War II in Europe, Szilard and Wigner visited Einstein to explain the possibility of atomic bombs, which Einstein, a pacifist, said he had never considered. He was asked to lend his support by writing a letter, with Szilard, to President Roosevelt, recommending the U.S. pay attention and engage in its own nuclear weapons research. A secret German facility, apparently the largest of the Third Reich, covering 75 acres in an underground complex, was being re-excavated in Austria in December 2014 and may have been planned for use in nuclear research and development. The letter is believed to be "arguably the key stimulus for the U.S. adoption of serious investigations into nuclear weapons on the eve of the U.S. entry into World War II". In addition to the letter, Einstein used his connections with the Belgian Royal Family and the Belgian queen mother to get access with a personal envoy to the White House's Oval Office. President Roosevelt could not take the risk of allowing Hitler to possess atomic bombs first. As a result of Einstein's letter and his meetings with Roosevelt, the U.S. entered the "race" to develop the bomb, drawing on its "immense material, financial, and scientific resources" to initiate the Manhattan Project. It became the only country to successfully develop an atomic bomb during World War II. For Einstein, "war was a disease ... [and] he called for resistance to war." By signing the letter to Roosevelt he went against his pacifist principles. In 1954, a year before his death, Einstein said to his old friend, Linus Pauling, "I made one great mistake in my life--when I signed the letter to President Roosevelt recommending that atom bombs be made; but there was some justification--the danger that the Germans would make them ..."

Question: "Which two powers during World War Two were likely racing to develop the first nuclear weapons?"

Response: "The U,S and Germany"

A:
yes