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What are the four branches of oceanography?

Chemical oceanography concerns composition of seawater and biogeological cycles acting on it. Marine geology involves study of the features and structures of ocean basins and how they evolved.\nPhysical oceanography is about properties and movement of seawater and how the ocean interacts with the atmosphere. Marine ecology, or biological oceanography, studies life cycles and food production of animals and plants.

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What are the pros and cons of DNA fingerprinting?

The clearest argument for DNA fingerprinting is that it aids in crime-scene analysis, making it far easier to connect criminals to crimes. Using databases, law enforcement officers can match trace amounts of DNA collected from crime scenes to any individual whose DNA is cataloged in the system. Matching crime-scene evidence to old crimes or previously convicted criminals was nearly impossible prior to DNA testing, but the advent of the technology has made it far easier for law enforcement officials to catch criminals and solve cold cases.\nCritics of DNA fingerprinting argue that the process c..

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Who was Albert Einstein's sister?

Maja Einstein studied romance languages and literature at schools in Berlin, Paris and finally at the University of Bern, where she graduated in 1909. She married Paul Winteler in 1910 and lived with him in Luzern and then in Colonnata, just outside Florence in Italy. They had no children. In 1939, Maja emigrated to New Jersey although her husband was refused entry due to health reasons. Maja died of atherosclerosis on June 25, 1951, just four years before the death of her brother. She was 69 at the time of her death.

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How do you separate alcohol and water?

Heat the water and alcohol mixtureAdd the mixture to a flask, and position the flask on a stand. Add a boiling chip to the flask. Position the heat source (open flame or heating plate) underneath the flask, turn it on and maintain a constant temperature.Evaporate the alcoholContinue heating until the alcohol has turned into vapor. Alcohol evaporates before water because it has a lower boiling point, and the thermometer remains at the alcohol-vapor temperature until water begins to evaporate. Keep the temperature stable. A rise in temperature indicates impure alcohol. Turn off the heat when you..

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What are the light spots on the moon called?

The highlands consist of rocks with high aluminum content; therefore, the highlands are lighter in color and less dense than the maria. Because the moon always shows the same face to the Earth, scientists focused on this side and saw that it contained a relatively equal distribution of maria and highlands. When the far side of the moon was explored, scientists found that the far side consisted mainly of highlands.

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What is a experimental group in biology?

All controlled science experiments require both an experimental group and a control group. This way the results of the variable being introduced to the experimental group can be compared with the results of no introduced variable in the control group. The differences in results can then be measured to deduce any effects of the variable upon the subjects of the experiment.

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Why would you perform a rubber band energy experiment?

Rubber bands can also be used as cheap projectile toys. Put a rubber band around your thumb and forefinger, making sure that it is taut. Pull one side of the rubber band towards you, allowing it to stretch. Then, release the band and see it fly.\nWhen the rubber band is stretched, potential energy is being stored in the material. The stretchy nature of the rubber band allows it to store elastic potential energy. As soon as the rubber band is released, the potential energy is quickly translated to kinetic or motion energy as it flies off.\nThe amount of elastic potential energy is directly prop..

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What are the 5 classes in the phylum Arthropoda?

The phylum Arthropoda contains all shellfish, spiders, insects, centipedes and millipedes. These creatures are characterized by their jointed legs, segmented bodies and their exoskeletons, which are made out of chitin.The class Insecta, which is in the phylum Arthropoda, contains all insects is by far the most abundant class of creatures found on earth. In fact, the class Insecta is so large that it contains more creatures than all other classes from all other phyla combined.

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How do levers work?

HowStuffWorks states that levers overcome a resistance when force is applied, and they are used to gain force and speed or change direction. They have a fixed support to which they freely turn about called the fulcrum. In some levers, it is possible to increase speed by applying the force over a shorter distance than the resistance is moved. A proportional increase of force is needed for this. Examples of levers include seesaws, crowbars, wheelbarrows, wrenches, nutcrackers, bats, hammers and balance scales. Body parts, such as the hands, arms, legs and feet, also function as levers.\nProfesso..

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Who is Leone Lattes in forensics?

Leone Lattes was an Italian forensic scientist who worked as a researcher at the Institute of Forensic Medicine in Turin, Italy, in the early 20th century. In 1901, he published a paper describing the modern method of categorizing blood groups. By 1915, he had successfully developed a method, the antibody test, for assigning samples to each of the major blood types.

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