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What is the function of the stomach?

The body's GI tract begins at the mouth, includes the esophagus, stomach, small intestine, large intestine and rectum, and ends at the anus. After food has been chewed and broken down by saliva, the act of swallowing pushes the food down the esophagus. The esophagus empties into the stomach.\nThe stomach contains gastric juices made up of hydrochloric acid and pepsin. The juices in the stomach work to break down protein and kill harmful bacteria, reports Live Science. Hydrochloric acid in the stomach kills bacteria by sterilizing it and helps to absorb minerals like magnesium, sodium and ..

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What are the association areas of the brain?

The limbic association area is in the temporal lobe, and this part of the brain is essential for learning and memory function. The limbic association area deals with emotional inputs and most sensory information, notes UTH. The posterior association area is found at the intersection of the occipital, temporal and parietal lobes. This area is important to perception and language. The anterior association area is in the prefrontal cortex. This part of the brain links data from other association areas and helps the brain process memories, higher-order concepts and planning.\nFor example, the limb..

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What is it called when a gas turns into a liquid?

Condensation occurs when a gas is cooled, at which time the gas turns into droplets of liquid. Condensation contributes to many common natural phenomena. It forms clouds which often give rain to the earth. Condensation also produces fog. The drops of water on a window's interior surface on a winter day also come from condensation. The change in matter occurs when the arrangement of the molecules changes. In a gas, the molecules are less organized than they are in a liquid.

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What Kingdom does Euglena belong to?

Euglena are found in both fresh and salt water. They are frequently abundant in calm, inland waters. They may bloom in such high numbers that they color the surface of the water green or red.\n\n\n\nMost members of this species have the ability to feed like both plants and animals. This made them nearly impossible for early taxonomists to classify. Such organisms prompted a third kingdom to be added to the Linnaean classification system: Kingdom Protista.\n\n\n\nEuglena have a nucleus, chloroplasts and a stigma.

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What are some advantages and disadvantages of microscopes?

There are several types of microscopes available for use in many fields of science. Electron, light and dissecting microscopes are just some of the many around, and a disadvantage to having so many types to choose from is that a person or organization may use the wrong one for their needs. Some microscopes offer higher resolutions than others and some, like stereoscopic microscopes allow users to view thicker objects than many others. Microscopes have opened the door to so many new discoveries and treatments that the advantages far outweigh any disadvantages.

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Which alkanes are gases at room temperature?

All four of these alkanes have four or fewer carbon atoms. Alkanes with more carbon content are liquid or solid at room temperature. Hexane and octane are examples of alkanes that are liquid at room temperature. Hexane has six carbon atoms, and octane has eight carbon atoms. Complex alkanes with long chains of carbon are extracted from petroleum rather than found in nature.\nThe more carbon atoms exist in an alkane, the stronger its molecular bonds are. This is why the alkanes with the smallest number of carbon atoms have the lowest vaporization points; they have the weakest bonds holding them..

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How does humidity affect static electricity?

Static electricity occurs when objects have imbalances of negative and positive charges. When either positive or negative charges on an object become imbalanced, they build up until they find a means of release. The resulting "shock" that people often feel from static electricity is these charges being released and restoring the balance of positive and negative charges.In dry air, the imbalanced charges have nowhere to go, so they build up until they come into contact with another conductive object that can release the excess charges. However, in humid air, static electricity has a natural mea..

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What does the ISS track?

The ISS has been manned by an international crew since 2000. Expeditions usually take six months and are manned by three to six crew members. Research is completed in the space station's laboratories that could not be carried out elsewhere. NASA uses lessons from the research to plan expeditions into deeper space. The ISS is powered by solar arrays and is visible from Earth.

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What is the definition of "quantitative analysis"?

An example of quantitative analysis is determining how much hydrogen and oxygen is present in water. Another example is determining the relative concentration of a substance, such as a 70 percent concentration of isopropyl alcohol to water. Techniques for conducting quantitative analysis include gravimetric analysis, titration and mass spectrometry.\nQuantitative analysis is one of the two components involved in chemical analysis; qualitative analysis is the other component. Quantitative analysis determines how much of a constituting substance is present, while qualitative analysis determines ..

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How do you convert kilograms to centigrams?

Note the number of kilograms you wish to convertThe easiest way is to start by writing (or inputting into a calculator) the value that represents the number of kilograms you wish to convert to centigrams.\n\nMultiply the number of kilograms by the centigram conversion factorMultiply the number of kilograms by the centigram conversation factor of 100,000. Written as an equation, the process would look like this: (x kilograms)(100,000 centigrams per kilogram) = y centigrams.Note the answerWhen you multiply the number of kilograms (x) by 100,000, you arrive at your answer in centigram units (y).

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