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A bite from a fire ant is quite painful, and feels much like pressing a lit match against the skin. While only about one percent of the human population is allergic to fire ant venom, multiple bites from a disturbed…
Processes that break down and weaken earth minerals are known as weathering. Over time, this can lead to erosion, in which huge sections of rock and stone are carried away, changing landscapes. Physical weathering alters the material structure of rocks,…
In order to solve many geometry problems, it’s important to understand the basics of angle measurement and the rules that all polygons follow. By calculating the sum of the interior angles for a specific polygon, missing angle measurements can be…
Many compounds, especially in pharmaceuticals, require high purity. To check for sample (analyte) purity, you must perform titration so that one volume of the solution reacts the same as another solution. You add measured increments of a titrant until the…
Geologists have categorized rocks into three different types. Igneous rocks are formed from magma or lava that is cooled to a solid. Metamorphic rocks are formed when other rocks of any type undergo heat and pressure to form a different…
Cell specialization, also known as cell differentiation, is the process by which generic cells change into specific cells meant to do certain tasks within the body. Cell specialization is most important in the development of embryos. In adults, stem cells…
Igneous rocks are extrusive and intrusive. Extrusive rocks are formed from magma above the surface, while intrusive igneous rocks form from magma beneath the surface. The cooling process may be fast or slow, and determines the color and texture of…
Biologists identify these 7 biomes by their individual and distinctive physical characteristics: Tropical Rainforests: Receive constant rain throughout the year, which makes these areas (usually located at the equator) lush with tropical plants, trees, rivers, streams and rich, fertile soil.…
Nothing is more stressful than worrying about your school grades. How well do you need to do on your final exam to pass the class? How do you even work it out? Calculating your school grades by percentage means combining…
Healthy teeth are vital when you chew food, which is important for digestion. They make it easier for our mouths to form words and – let’s not forget – they make radiant smiles. Because teeth are so important, tooth decay…
