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Why is homeostasis important to organisms?

By definition, homeostasis is the tendency of a system to maintain internal stability. It is essential to life in higher animals. When the external temperature rises, the human body responds by forming perspiration to maintain core temperature of 98.6 F, at which the body functions best.\nIn the human body, the endocrine and nervous systems control homeostasis. The organs and organ systems provide feedback to the brain. The body maintains homeostasis through maintaining temperature, balancing pH, maintaining a balance between electrolytes and water, respiration and maintaining blood pressure.\..

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What is the molecular weight of benzoic acid?

The atomic weight of each carbon atom is about 12 amus, for a total mass of 84 amus in one molecule of benzoic acid. The total atomic mass of hydrogen for each molecule of benzoic acid is about 6 amus. This is calculated by adding 1 amu per atom of hydrogen. The atomic weight of each atom of oxygen is about 16 amus.

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What is a limnic eruption?

Although indirectly related, scientists have established that limnic eruptions are very different from volcanic eruptions. While it is true that carbonation can trigger the onset of limnic eruption, cataclysmic events can initiate it as well. In this respect, rainstorms, volcanic eruptions, explosions and wind may all play a part in causing a limnic eruption.\nIn two instances, which both occurred in Cameroon, a limnic eruption killed 37 people and another 1,800 in 1984 and 1986 respectively. It is believed that the high-pressure of the lakes where it occurred and the tropical nature of the re..

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How long does radiation stay in the body?

Radiation has been used in the medical field as a treatment for cancer patients for over 100 years. Many patients who are about to undergo radiation therapy have questions about the treatment and are concerned about whether the treatment is safe or not. While radiation does have many side effects that can be detrimental to the body, it is considered a safe procedure that greatly outweighs the option of continuing to have harmful cancer within the body. Over the time that radiation has been used, many medical advances have been made to make it safer and more effective as a treatment for cancer...

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What determines whether a compound dissolves in water?

When added to water, the molecules of polar or ionic compounds break up into ions and form hydrogen bonds with water. The water molecules then create a sphere of hydration around these individual ions and keep them dispersed.\nIn contrast, nonpolar compounds are hydrophobic and repel water molecules. The hydrogen bonding pattern of the water shifts to create a clathrate around the hydrophobic compound. This cage-like structure prevents the substance from dissolving.

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What is the job of the brain?

The main parts of the brain include the cerebrum, the cerebellum and the brain stem. The cerebrum is the largest part of the brain and allows humans to think and control the voluntary muscles in the body. The cerebellum helps humans stay balanced and coordinated while they move. The brain stem extends underneath the brain and is responsible for respiration and regulating body function. Two other parts of the brain, the pituitary gland and hypothalamus control certain types of hormone production and body temperature. There are many other parts of the brain as well, each of which control very sp..

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Where is barometric pressure the lowest?

The lowest barometric pressure ever observed on earth occurred during Super Typhoon Tip in October 1979. This measurement was taken in open water near the Pacific island of Guam. A similarly low pressure occurred during Cyclone Monica in April 2006, in the Gulf of Carpentaria near Australia.\nSometimes very low barometric pressure occurs outside the tropics. In January 1993, scientists measured very low barometric pressure in the middle of a storm in the northern Atlantic ocean between Iceland and Scotland.

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What is the importance of the equator?

The Earth is widest at the equator. It's understood that the total distance around the Earth at the equator is believed to be 40,075 kilometers. It's also at this point that the Earth’s diameter is widest, believed to be around 12,756 kilometers. According to Lilly Ponds Art Center, the equator is longer than the Earth's circumference because, unlike the circumference that is measured in a straight line, the equator traverses various topographies. These include mountain ranges and sea levels, which add a few kilometers to its total length. According to National Geographic, the..

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What are the health risks of bisphenol A?

Bisphenol A is a chemical compound used in hardening plastics. Over time, plastics release bisphenol A molecules in low concentration. Its health risks are particularly high during stages of rapid growth such as childhood and developing fetuses. The chemical mimics estrogen, so it is a potential endocrine-disrupting compound. Governments have reduced use of bisphenol A due to public concern over potential health hazards, says National Geographic.\nResearch suggests that bisphenol A impairs brain development in children and is a precursor for heart problems in adults. The Food and Drug Administ..

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How do you create a chemistry quiz with answers for high schoolers?

To use the Royal Society of Chemistry's quiz generator, enter the Learn Chemistry section of the website, accessible by clicking on the Resources & tools tab on RSC.org. Select the Wiki link, and click on Quizzes and then Quiz: Writing your own quiz. After logging into a user account, click on the appropriate link depending on whether you wish to include feedback on the question choices.\nAfter loading the quiz-generator form, type a name for the quiz into the appropriate text box. One question at a time, select the question number, and then type the question and each answer choice into t..

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