Question: Most annelids have a pair of coelomata (body cavities) in each segment, separated from other segments by septa and from each other by vertical mesenteries. Each septum forms a sandwich with connective tissue in the middle and mesothelium (membrane that serves as a lining) from the preceding and following segments on either side. Each mesentery is similar except that the mesothelium is the lining of each of the pair of coelomata, and the blood vessels and, in polychaetes, the main nerve cords are embedded in it. The mesothelium is made of modified epitheliomuscular cells; in other words, their bodies form part of the epithelium but their bases extend to form muscle fibers in the body wall. The mesothelium may also form radial and circular muscles on the septa, and circular muscles around the blood vessels and gut. Parts of the mesothelium, especially on the outside of the gut, may also form chloragogen cells that perform similar functions to the livers of vertebrates: producing and storing glycogen and fat; producing the oxygen-carrier hemoglobin; breaking down proteins; and turning nitrogenous waste products into ammonia and urea to be excreted.
Try to answer this question if possible: What is the mesothelium made of?
Answer: modified epitheliomuscular cells
Question: Palermo is surrounded by mountains, formed of calcar, which form a cirque around the city. Some districts of the city are divided by the mountains themselves. Historically, it was relatively difficult to reach the inner part of Sicily from the city because of the mounts. The tallest peak of the range is La Pizzuta, about 1,333 m (4,373 ft.) high. However, historically, the most important mount is Monte Pellegrino, which is geographically separated from the rest of the range by a plain. The mount lies right in front of the Tyrrhenian Sea. Monte Pellegrino's cliff was described in the 19th century by Johann Wolfgang von Goethe, as "The most beautiful promontory in the world", in his essay "Italian Journey".
Try to answer this question if possible: Where is Monte Pellegrino in relation to other peaks?
Answer: geographically separated from the rest of the range by a plain
Question: In 1799, English Freemasonry almost came to a halt due to Parliamentary proclamation. In the wake of the French Revolution, the Unlawful Societies Act 1799 banned any meetings of groups that required their members to take an oath or obligation. The Grand Masters of both the Moderns and the Antients Grand Lodges called on Prime Minister William Pitt (who was not a Freemason) and explained to him that Freemasonry was a supporter of the law and lawfully constituted authority and was much involved in charitable work. As a result, Freemasonry was specifically exempted from the terms of the Act, provided that each private lodge's Secretary placed with the local "Clerk of the Peace" a list of the members of his lodge once a year. This continued until 1967 when the obligation of the provision was rescinded by Parliament.
Try to answer this question if possible: Who gave the Freemasons an exemption of the Act of 1799?
Answer: Prime Minister William Pitt
Question: Albert Einstein proposed that the laws of physics should be based on the principle of relativity. This principle holds that the rules of physics must be the same for all observers, regardless of the frame of reference that is used, and that light propagates at the same speed in all reference frames. This theory was motivated by Maxwell's equations, which show that electromagnetic waves propagate in a vacuum at the speed of light. However, Maxwell's equations give no indication of what this speed is relative to. Prior to Einstein, it was thought that this speed was relative to a fixed medium, called the luminiferous ether. In contrast, the theory of special relativity postulates that light propagates at the speed of light in all inertial frames, and examines the implications of this postulate.
Try to answer this question if possible: What did Einstein agrue was dependent on the observers frame of refrence?
Answer:
unanswerable