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What is carbon used for in living things?

In terms of respiration and food metabolism, carbon is vital in that it combines with oxygen and glucose in mammals in order to produce carbon dioxide, water and energy (in the form of heat). Although mammals do not require the carbon dioxide and release it into the atmosphere, plants use it in order to photosynthesize, making use of it in the opposite manner of mammals.\nCells are made of a series of complex molecules known as macromolecules. These include proteins, nucleic acids, carbohydrates and lipids. These are all subsets of organic molecules, which are molecules that contain carbon. Be..

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Where are your pulse points located?

According to Patient.co.uk, the pulse point on the wrist is called the radial pulse. To take the pulse at this pulse point, the arm should be bent at the elbow with the palm of the hand facing up. The opposite middle and index finger are then placed over the wrist and moved around slowly until the heart beat can be felt through the fingers. The same two fingers should be used to find the carotid pulse in the neck, but Drugs.com emphasizes that one should press only on one side of the neck at a time.

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What factors affect friction?

Frictional force is proportional to the normal force on an object. To understand the normal force it is important to consider that all forces have an equal and opposite force. In other words, when an object sits on the ground, gravity acts on the object, the object pushes against the ground, and the ground pushes back up. Heavier objects have more friction. Rougher objects also have more surface area. This means that there are more opportunities for the surface to interact with whatever it is rubbing against.

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What are some popular ethanol gas treatments?

Lucas Oil Safeguard is formulated with stabilizers that work with E-10, E-15 and E-85 blends, as well as pure ethanol. Safeguard is completely soluble, doesn't harm filters and prevents rust and corrosion that can be caused by ethanol fuels. The additive also prevents varnish and gum build-up in fuel injectors.\nSTA-BIL ethanol additives perform many of the same functions. Some of the STA-BIL products also work well for small engines that are using ethanol fuel, including snow blowers, lawn mowers, chainsaws and snowmobiles.

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What is the bundle of nerve processes inside the CNS called?

The smallest unit of any neural pathway is the individual nerve cell, or neuron. Neurons have long tendrils called axons, which are used to communicate signals from one cell to the next. Fasciculi are bundles of axons. Funiculi are bundles of fasciculi. Funiculi are not continuous strands and frequently fuse and divide along their length. Within the spinal cord, fasciculi and funiculi are specialized for carrying certain kinds of information to and from the brain.

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Where are orchids found?

Orchids can grow underground, on rocks or in the soil, but most grow on other plants and trees. They are a diverse species in both size and color. Some orchids are very small, with nickel-sized blooms. Others have blooms that are 12 to 14 feet long. Orchids come in a variety of colors, with the exception of black.

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What are some uses for phenylephrine HCl?

Phenylephrine HCL is the active ingredient in medicines such as Sudafed PE. Phenylephrine is a widely used alternative to pseudoephedrine, which is also a decongestant. Pseudoephedrine is more effective than phenylephrine but is also a key ingredient in making methamphetamine, explains Riverside Health System. Federal law requires non-prescription medicines containing pseudoephedrine to be kept behind the counter at pharmacies. Drug companies responded to this by replacing pseudoephedrine with phenylephrine in cold medicines, allowing consumers easier access to them.

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What is a dissecting microscope?

Dissecting microscopes have advantages and disadvantages. They are the only microscopes that can produce three-dimensional images and have a superior depth of field compared to typical compound microscopes. Their three-dimensional images can be useful in determining the exact location and function of objects. However, they have a small magnification. This prevents the user from seeing highly detailed images, but allows larger portions of the object to be viewed at the same time.

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Does tin rust?

Tin is a metal most often found in and mined from a mineral called cassiterite. On its own, tin is too soft for most metal-working purposes, so it is often mixed with stronger metals. Tin only breaks down when it is exposed to strong acids. Since it doesn't rust, a thin layer of tin is sometimes used to coat other metals, such as steel, to prevent or slow the presence of rust. It is most commonly used to coat steel cans.

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Are lightning and thunder the same thing?

Lightning is the flash that results from the heated air becoming incandescent as the energy passes through it. The air heats up to the point where its atoms are stripped of their electrons, and plasma is created. This plasma glows brightly and is responsible for the flash of lightning.\nThe plasma glows this way because it is very hot. Hot gases expand rapidly until they have cooled down. The expansion of the heated column of air creates a shock wave that propagates outward in three dimensions from the site of the lightning strike at the speed of sound. This is known as thunder. Close to the s..

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