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What is a producer in ecology?

During photosynthesis, producers convert energy they've collected into plant sugars, which are broken down to release chemical energy. If light is not present, some producers change chemicals into energy through chemosynthesis. Producers make their own energy and provide energy for consumers that feed off them. These plants are present on almost the entire planet, including in the oceans, where the most common producers are algae. Producers are one of the three main plant groups in the food chain, the other being consumers and decomposers.

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Why do acids taste sour?

According to the Brønsted-Lowry definition, acids include any substance that gives up its hydrogen ions when mixed with another substance. Thus, acids increase the hydrogen ion concentration, which provides more ions for the tongue. Because the tongue gains ions, it registers the flavor as sour. Bases, on the other hand, gain ions when mixed. For instance, if one mixed an acid and a base together, the mixture would create water and salt. Bases taste more bitter because fewer hydrogen ions reach the tongue. Acidity can be measured by the pH level of a solution or compound. The lower the soluti..

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How fast do radio waves travel?

The unit that measures radio waves, hertz, was named after Heinrich Hertz, who first proved the existence and speed of radio waves. Hertz also proved that radio waves are actually a form of light. Albert Einstein and other scientists have established that nothing with mass can travel as fast as light speed, but light and sound waves sometimes travel slower.

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What role do valence electrons play in covalent bonding?

Valence electrons are involved in any type of bonding. When nonmetal and metal atoms bond, they typically do so ionically. The metal atom donates one or more of its few valence electrons in order to deplete its outer orbital, while the nonmetal atom accepts electrons to fill its outer orbital. When two nonmetals bond, neither has a significantly greater pull to an electron, which is why valence electrons are shared, rather than transferred.

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Why do things dissolve?

In general, molecules and their components will arrange themselves into the easiest configuration that requires the least amount of energy to maintain in any given environment. The strength of the bonds also differs depending on the particular substance, which is why some substances are harder to dissolve or do not dissolve at all.

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Is there a Hazmat Operations study guide?

At studystack.com, users may create their own activities or use those created and shared by students and teachers alike. For example, there are seven other study areas available which include a Hazardous Material Operations Student Study Guide, Personal Protection Equipment information, Detection Devices information, a Hazmat Technician Study Guide and important notes for the Hazmat Exam.

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How can I grow longer legs?

Longer legs require longer leg bones. Once puberty ends, the bones of the human body stop growing. However, diet and exercise can help a person's legs look leaner, which can create the appearance of longer legs. Before and during puberty, regular exercise helps grow healthy bones and muscles, which can encourage a young body to achieve its full-growth potential. Exercise also helps adults stave off conditions, such as osteoporosis, which can cause bone mass to decrease.

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How many miles is a 50k?

A kilometer is a unit of measurement in the metric system. Other units of measurements include meters and centimeters. One meter is the equivalent of about 3 feet. Another unit of measurement in the metric system is Celsius, which measures temperature. There are only three countries in the world that don't use the metric system: the United States, Burma and Liberia.

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What were Anton van Leeuwenhoek's contributions to cell theory?

Anton van Leeuwenhoek was a very prolific scientist and had a very long life, dying at the age of 91. One of his most ground-breaking discoveries was also one of his first. His observations, in 1674, of scummy pond water led to the first visual descriptions and illustrations of such common organisms as the algae spirogyra. This contributed towards the foundation of several sub-fields of biology.\nA few other important scientific milestones of van Leeuwenhoek's include the discovery that baker's yeast consists of tiny plant-like organisms; the discovery of motile bacteria in tartar on..

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Is beer acidic or basic?

The pH level in beer is an important factor to consider when brewing beer. Yeast is added to beer during the brewing process to ferment the liquid and cause the alcohol to form. The yeast must be at a pH of around 5.5 to ferment at its optimum level. Yeast contains critical enzymes that facilitate the fermentation process. These enzymes work best at the pH of 5.5. Once the beer has been fermented other ingredients are added to the beer to adjust the pH and flavor of the beer.

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