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How does a lenticular galaxy differ from a normal spiral galaxy?

Lenticular galaxies have a structure that is in many ways similar to spirals with a flat disk surrounding a central bulge. The similarity breaks down, however, in their lack of organized spiral arms. For this reason, according to the Sloan Digital Sky Survey, lenticular galaxies are sometimes referred to as "armless spirals." This distinct lack of structure makes lenticular galaxies, such as M85, easy to mistake for ellipticals, especially under less-than-optimal conditions such as low light levels. Like some spiral galaxies, some lenticular galaxies are crossed along their plane by a noticeab..

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What are glutes?

Many weightlifting exercises are employed to target the gluteal muscles with the intent of making them larger in appearance and stronger. For example, the squat and deadlift work the entire lower body and much of the upper body, but they also have a significant effect on the glutes when performed with good form. Many isolation exercises are also used to develop the glutes, including lever lying hip extensions and barbell hip thrusts. The glutes are also employed extensively during running and sprinting.

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Why is biology important in everyday life?

The study of biology has helped humans to understand the similarities between all forms of life. For example, the genetic code that helps to construct all living organisms is very similar in all life forms. The genetic material is stored in the form of DNA for all plants, animals, bacteria and fungi. By studying the DNA of all these different life forms, biologists have determined that all living creatures are related to each other.\nBiology has also helped doctors learn how to keep people healthy and fight off disease. Biologists have learned that things called pathogens, which are themselves..

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What is the main function of ribosomes?

The process by which ribosomes make protein calls for several steps. First, the mRNA is made in the nucleus of the cell and sent to the ribosome. The mRNA then combines with the ribosome's subunits, which themselves are made of protein, and is interpreted into a new sequence known as tRNA, or transfer RNA. Each nucleic acid of the tRNA chain is bound to an amino acid. Once the tRNA chain is complete, the ribosome pulls the amino acids off of the tRNA and connects them into a long protein chain.\nAll prokaryotic and eukaryotic cells contain ribosomes, though those found in eukaryotic cells..

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What is a primary function of lymphocytes?

Lymphocytes make up between 20 to 40 percent of the white blood cells found in adults. There are different types of lymphocytes like B cells, T cells and natural killer cells. The thymus gland is the site where T cells develop. T cells contain T cell receptors that can recognize and attach themselves to various types of antigens.B cells mature in the bone marrow and these cells also contain receptors that recognize other types of antigens and can bind to them. Natural killer cells are capable of destroying infected cells or certain tumor cells.

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What is a nebula?

Some nebulae create their own light, which sometimes has a fluorescent appearance, while others only reflect the light from nearby stars. Nebulae are often seen around dying stars, and it's thought they may be a natural process that occurs when a star is nearing the end of its life. Nebulae resemble thin clouds that have less atoms per cubic inch than a cloud of smoke. The Crab Nebula, located in the Taurus constellation, is 10 light years across and 6,500 light years from Earth.

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What are the characteristics of black mold?

The genus Stachybotrys contains around 50 species of fungus, with Stachybotrys chartarum and Stachybotrys chlorohalonata being the species commonly known as black mold. Stachybotrys requires cellulose and moisture to thrive and commonly inhabits wet drywall, ceiling tiles and wood. If the material dries out the fungus dies, but the residue left behind becomes airborne upon disturbance of the area and can travel through air ducts or blowers.\n\nBlack mold causes a number of health problems for humans, including respiratory and contact allergies, conjunctivitis and exacerbation of asthma symptom..

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What is magnetic levitation?

When two like poles, such as negative and negative or positive and positive, of two dipole magnets are placed together, they repel. However, this is not stable because one magnet can easily slide to the side. A servomechanism is used to correct this activity. These servomechanisms include diamagnetic materials, eddy currents or superconductivity.\nPyrolytic graphite is a diamagnetic material, which means it creates a magnetic field in opposition to the externally applied magnetic field, such as that of rare earth permanent magnets. Eddy currents are formed when the Lorentz force on electrons c..

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What is a yellow slime mold?

While yellow slime mold is not harmful, it is unsightly, which is why most people want to get rid of it. However, most chemicals won't permanently kill it, making this task difficult. Since mold grows best in moist or humid conditions, the key is to dry out the mold and the area surrounding it.

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What is the color for a 75th birthday?

Since the 75th birthday is a momentous one, bright, fun colors are appropriate. Once a color scheme is chosen, one should select the dishes, party favors, and decorations in the chosen colors. One fun idea is to have the birthday man or woman dress in one color and have the party goers dress in other colors so that the honoree stands out.

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