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Why do you use a coverslip when making a wet mount?

One main goal when using a coverslip is to ensure an appropriate amount of liquid or sample on the slide. If there is too much liquid, the coverslip does not stay in place. Excess water may be removed by placing an absorbent material near the edge of the slip to draw water out. Lack of water under the coverslip can be remedied by placing a drop of water on the outside of the slip near its edge.

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What is the function of the triceps?

The name triceps means "three head" in Latin, and the triceps muscles are often referred to by this term. There are three sections to the triceps muscles which are the long head, medial head and the lateral head. The long head runs along the inside back of the arm. The long head also serves to extend the shoulder, which assists in the overall movement of the arm. The medial head is underneath both the long and lateral heads, but runs along the entire back of the upper arm. The lateral head is located on the outside edge of the back of the arm. Each of these muscles has its own corresponding co..

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How many electrons does phosphorus have in its valence shell?

Phosphorous has a total of fifteen electrons. Two are located in the 1s orbital and two are located in the 2s orbital. The second energy level has three orthogonal 2p orbitals, holding a total of six electrons. This adds up to ten electrons which provide a neon core. The remaining five electrons are the valence electrons.\nAccording to Hund's rule, the 3p orbitals are degenerate, or have the same energy. Therefore, each orbital holds one electron. Because of these three single electrons, phosphorous usually forms three bonds.

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How do avalanches occur?

Overloading is a major factor in the occurrence of an avalanche. When the weight of snow increases, it soon overcomes cohesion to the snow pack below. Additionally, bonds weaken when temperatures increase, while the tension and brittleness of a slab increases when temperatures fall. Another significant trigger is slope angle. Many avalanches typically occur on slope angles between 35 and 40 degrees. Vibration is caused by shouting, explosion, gun shot, thunder and other loud noises. Earthquakes and noise produced by heavy machinery are also capable of starting avalanches.\nAvalanches generally..

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What is non-Mendelian genetics?

In Non-Mendelian genetics, traits do not segregate in the offspring of the parental generation. This type of inheritance is unpredictable and is seen in many disease processes. Mendelian genetics states that each parent contributes an allele to a gene. Therefore, its easy to predict the phenotype of the offspring because the offspring must express one of the two alleles available. Non-Mendelian inheritance is less predictable because it does not follow this pattern.

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Why are chromosomes important?

Each chromosome is comprised of a DNA molecule made up of nucleotides in a double-strand formation that resembles a ladder with a twist. This formation is called a double helix. Each nucleotide is made up of sugar, a phosphate and a base. There are four different bases: adenine, guanine, cytosine and thymine. The order in which these four bases pair with each other to create sequences of base-pairs is what determines the encoding of the genetic information, much like letters combine to form words. In this case, the "words" function as a set of instructions for the organism's cells.

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What are three examples of macroscopic properties?

Other examples of macroscopic properties include texture, phase (solid, liquid or gas), viscosity (if any) and density relative to surroundings (such as oil on water). The properties of an element or material tend to change, even if only slightly, as the conditions change. Examples of changing conditions include how metals tend to glow red when heated to extreme temperatures, how the viscosity of honey decreases with temperature or how the volume of H2O increases slightly when it freezes.

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Why do humans have the urge to stretch in the morning?

In addition to the limited nerve impulses that prevent the muscles from overextension during sleep, the need to stretch upon waking is also prompted by the body's fluids pooling towards the back of the body. Stretching allows the fluids to return to the muscles. After stretching, the muscles become responsive and ready for movement.

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What is the importance of science in everyday life?

Science makes everyday life easier than it ever has been. The most powerful example is the importance of electricity; the scientific discovery of a method for harnessing electric energy changed people's lives forever. Electric light benefits people every day in inventions such as traffic lights, refrigerators and communication devices. Science is the reason for the quick pace of modern life. A journey that took weeks on foot or horseback was shortened to a few days' travel by the use of steam-powered locomotives followed by personal automobiles. Finally, travel by airplane allowed pe..

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How do tsunamis happen?

The vast majority of tsunamis happen because of earthquakes and underwater landslides. The energy from an earthquake displaces ocean water, which causes the formation of waves that travel over long distances at varying heights. These waves, called wave trains, are destructive when they reach the shore, and may be compounded by successive waves. The size of the waves depends largely on the magnitude of the earthquake and the shore's proximity to the epicenter of the earthquake.\nIt is common for tsunamis to appear on the shore as very strong and fast tides instead of giant breaking waves. ..

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