instruction:
Given a passage and a query based on the passage, generate an unambiguous, concise and simple answer to the query from information in the passage. Note that the answer may not be present in exact form.
question:
Here’s how your body reacts to fear. Courtesy of Oprah’s “O” Magazine. The moment you recognize a threat, your amygdala -an almond-shaped structure in your brain - directs a cascade of changes in your body so you can respond appropriately. Basically, it tells your body “Something scary’s happening! With a fever, the hypothalamus has reset the body's internal thermostat. Hyperthermia is a symptom that sets in when the body isn't able to maintain temperature properly -- it literally overheats. Hyperthermia can be serious. If the body's temperature rises too high, your organs can suffer damage. Generally, hyperthermia isn't a disease. It's a side effect of another problem, just like itching is a side effect of an allergic reaction to poison ivy. Once the bacteria that causes typhoid fever is consumed, it travels from the digestive system into the blood. As the bacteria travel through the body, Once the bacteria that causes typhoid fever is consumed, it travels from the digestive system into the blood. As the bacteria travel through the body, symptoms like high fever, headache, and overall fatigue can develop. The digestive system is also affected by the bacteria, which leads to stomach pain, diarrhea or constipation, and weight loss. The hypothalamus works with other parts of the body's temperature-regulating system, such as the skin, sweat glands and blood vessels — the vents, condensers and heat ducts of your body's heating and cooling system. The middle layer of the skin, or dermis, stores most of the body's water. The life-threatening disease typhoid fever results from the ongoing battle between the bacterial pathogen Salmonella and the immune cells of the body. A research group has now uncovered how the typhoid pathogen repeatedly manages to evade the host’s immune system. How Does Illness Cause Fever? Bacteria and viruses themselves, as well as toxins (poisonous waste products) produced by some bacteria, cause fever. In some cases, they work directly on the brain to raise the thermostat. 1 Correct! The clearing and settlement of rainforests has exposed woodcutters, farmers, and ecotourists to new vector-borne diseases. 2  Sorry, that’s incorrect. The clearing and settlement of tropical rainforests has exposed woodcutters, farmers, and ecotourists to new vector-borne diseases. A radiation dose as low as 0.35 Gy could feel a bit like you have the flu—expect nausea and vomiting, headaches, fatigue, and fever. If the body is exposed to a higher dose, somewhere between 1-4 Gy, blood cells begin to die. Fever, also known as pyrexia and febrile response,[6] is defined as having a temperature above the normal range due to an increase in the body's temperature set-point.[4][5] There is not a single agreed-upon upper limit for normal temperature with sources using values between 37.5 and 38.3 °C (99.5 and 100.9 °F).[6][7] The increase in set-point ... It's very important to understand that a fever is a normal response of the body to foreign invaders like bacteria and viruses. The body recognizes a foreign invader and the brain acts to increase body temperature to make things unsuitable for the foreign invader. Most bacteria can only tolerate a certain temperature range and once outside of it, do not survive. Query: how does your body react with a fever
answer:
It's very important to understand that a fever is a normal response of the body to foreign invaders like bacteria and viruses. The body recognizes a foreign invader and the brain acts to increase body temperature to make things unsuitable for the foreign invade


question:
Cell machines have large tool magazines to carry enough tools to do all of the various operations on each of the different parts, large worktables or the ability to change worktables, and special provisions in the controller for data inputs from other CNC machines. Attached to the side of the machine is a magazine of different tools. A transfer arm, sometimes called the tool bar, removes a tool from the machine, places it into the magazine, selects a different tool from the magazine, and returns it to the machine through instructions in the program. The fourth category covers modern machine tools and processes for machining ultrahard metals not machinable by older methods. 1  Machine tools that form parts by removing metal chips from a workpiece include lathes, shapers and planers, drilling machines, milling machines, grinders, and power saws. Modern machine tools cut or form parts to tolerances of plus or minus one ten-thousandth of an inch (0.0025 millimetre). In special applications, precision lapping machines can produce parts that are within plus or minus two millionths of an inch (0.00005 millimetre). The motions that are used in machine tools are called axis, and are referred to as X (usually left to right), Y (usually front to back), and Z (up and down). The work-table may also be rotated in the horizontal or vertical plane, creating a fourth axis of motion. After the advent of the steam engine, material goods were produced by power-driven machines that could only be manufactured by machine tools. Machine tools (capable of producing dimensionally accurate parts in large quantities) and jigs and fixtures (for holding the work and guiding the tool) were the indispensable innovations that made mass production and interchangeable parts realities in the 19th century. Machine tool: Machine tool, any stationary power-driven machine that is used to shape or form parts made of metal or other materials. The shaping is accomplished in four general ways: (1) by cutting excess material in the form of chips from the part; (2) by shearing the material; (3) by squeezing metallic parts to the desired shape; and (4) by applying electricity, ultrasound, or corrosive chemicals to the material. Welding the base. 1  1 The base of the machine is either cast or welded together. It is then heat treated to remove casting or welding stresses and to normalize the metal for machining. 2  2 The ways are ground flat, bolted, and pinned to the base. The controller. 1  5 The computer, or controller, is an electronic assembly separate from the rest of the machine. It has a climate-controlled enclosure mounted on the side of the frame or in an operator's console. 2  6 The assembled machine is test run for accuracy. In particular, machine-driven tools became necessary to manufacture the parts for the machines that now made goods formerly produced by hand. Most common machine tools were designed by the middle of the 19th century. Query: how is made machine tools
answer:
Machine tools that form parts by removing metal chips from a workpiece include lathes, shapers and planers, drilling machines, milling machines, grinders, and power saws.


question:
This material has been used ever since ancient times and has formed all over the world. Thanks to these stones, building materials of great quality can be formed, and they are mainly used as they are lightweight yet strong. Other buildings made out of oolitic limestone are The British Museum and St. Paul’s Cathedral. Oolitic limestone was used to build the Pentagon as well as other buildings around the world, such as Buckingham Palace and the Empire State Building. Scientists have discovered that oolitic limestone is actually a material which was made out of microbes that existed 200 million years ago, at the time of the Jurassic era when dinosaurs were still present on the Earth. OOLITIC LIMESTONE. Oolitic limestone is a carbonate rock made up mostly of ooliths (or ooids) which are sand-sized carbonate particles that have concentric rings of CaCO 3. These rings are formed around grains of sand or shell fragments that were rolled around on the shallow sea floor, gathering layer after layer of limestone. How did oolitic limestone form? Previously, scientists thought that the ooids formed from grains rolled on the seafloor and then accumulated layers of sediment. “Oolitic limestone is a carbonate rock made up mostly of ooliths (or ooids) which are sand-sized carbonate particles that have concentric rings of CaCO3. These rings are formed around grains of sand or shell fragments that were rolled around on the shallow sea floor, gathering layer after layer of limestone,” University College London gave an explanation on its website. Limestone is by definition a rock that contains at least 50% calcium carbonate in the form of calcite by weight. All limestones contain at least a few percent other materials. These can be small particles of quartz, feldspar, clay minerals, pyrite, siderite, and other minerals. Limestone is a sedimentary rock composed primarily of calcium carbonate (CaCO 3) in the form of the mineral calcite. It most commonly forms in clear, warm, shallow marine waters. It is usually an organic sedimentary rock that forms from the accumulation of shell, coral, algal, and fecal debris. Limestone is a sedimentary rock comprising at least 80% calcium carbonate (CaCO3). Limestones can be deposited in both marine and fresh water environments, the former being more common, and can take many forms such as those described below. Chalk is a pure, soft, well-jointed limestone composed primarily of the calcareous remains of micro-organisms called coccoliths and foraminifera. Pure white chalk contains more than 90% CaCO3 and is usually found in thick beds. In Britain it stretches from Yorkshire down to the famous cliffs of Dover. oolitic limestone Oolitic limestone is a carbonate rock made up mostly of ooliths (or ooids) which are sand-sized carbonate particles that have concentric rings of CaCO 3. These rings are formed around grains of sand or shell fragments that were rolled around on the shallow sea floor, gathering layer after layer of limestone. Portland limestone is an example of an oolitic limestone. This limestone formed in a shallow sea, rather like the modern Bahamas, near the end of the Jurassic period (~135 million years ago). The rock has an even structure rather like cod roe and it can therefore be cut or sculpted in any direction. Oolitic Limestone: A limestone composed mainly of calcium carbonate oolites, small spheres formed by the concentric precipitation of calcium carbonate on a sand grain or shell fragment. Travertine: A limestone that forms by evaporative precipitation, often in a cave, to produce formations such as stalactites, stalagmites, and flowstone. Query: how is oolitic limestone formed
answer:

Oolitic limestone is actually a material which was made out of microbes that existed 200 million years ago.


