Science

Refine Search

What is a list of names of unicellular organisms?

Unicellular organisms are ubiquitous to most environments on Earth. Unicellular organisms have been found in the most extreme environments, such as arid deserts, frozen tundra, highly acidic subterranean environments and hydrothermal vents on the ocean floor; these organisms are called extremophiles. Extremophiles are described by the environments in which they grow optimally, such as acidophilic for acidic environments and thermophilic for environments with high temperatures.\nUnicellular organisms can be innocuous to humans, but they are also responsible for diseases. Malaria is caused by a ..

Continue Reading

What is the molar mass of sodium nitrate?

The molar mass of NaNO3 is equal to the sum of the molar masses of all the elements that make up one molecule of the compound. To find the masses of these elements, consult the Periodic Table. The molar masses of Sodium, Nitrogen and Oxygen are 22.99, 14.01 and 16 grams, respectively. To find the molar mass of NaNO3, add the molar masses of all the atoms used in the compound 22.99g + 14.01g + (3 x16g), which is equal to 85g.

Continue Reading

What is a natural blood coagulant?

Vitamin K produces four of the proteins that are needed to make blood clots. It comes in three forms: phytonadione, menaquinone and menaphthone. Phytonadione can be purchased as a supplement in the United States. Vitamin K can also be found in liquid chlorophyll or chlorophyll tablets.\nA long course of antibiotics may cause a vitamin K deficiency. The antibiotics alter the flora in the intestines that are responsible for producing some of the body's vitamin K. Vitamin K deficiency can happen when the vitamin is not properly absorbed through the intestinal tract. Liver disease, gallbladd..

Continue Reading

What is the difference between a juxtamedullary nephron and cortical nephron?

Long loops in juxtamedullary nephrons create a gradient in the kidneys by which the osmosis of solutes occurs. This is where substances are filtered out of the blood and into the urine. As water dips down into the loop of Henle in these nephrons, water is permeable to the surrounding tissue. As the countercurrent goes back upward, salt is permeable to the surrounding medulla, according to Midlands Technical College.\nBoth types of nephrons regulate solutes and water in the blood. Southwest Tennessee Community College states that of the total amount of nephrons in the kidneys, 15 percent are ju..

Continue Reading

What is the purpose of a bifilar coil?

Resistors are a common component in modern electronic circuitry, and they are used for a variety of purposes, such as producing heat and regulating voltage. They are made of various materials, such as copper, nickel, tungsten and iron. Some resistors contain non-metallic materials including ceramic and carbon.\nResistors apply an opposing force, or resistance, on electrical current. The opposing force produced by a resistor can produce energy or limit the flow of electrical current. Some common uses for resistors are the heating elements in a toaster and the light filament in a light bulb.\nTh..

Continue Reading

What is the difference between lithosphere and asthenosphere?

The lithosphere is separated into the continental or oceanic crusts and the uppermost layer of the mantle. The crust and the upper mantle are separated by what is called the Mohorovicic discontinuity.\nScientists believe that the oceanic crust is between 31 and 87 miles thick, while the continental crust is between 25 and 174 miles thick. They determine this by noting the depths at which olivine, a silicate mineral, starts to become viscous.\nThe state of the rocky material in the asthenosphere is similar. Though it is still solid, it is able to flow due to great heat and pressure. Because of ..

Continue Reading

What is iritis of the eye?

Iritis usually affects only one eye, and symptoms can include redness, blurred vision, headaches and pain that can intensify under bright light, according to WebMD. Pain may be present in the brow area as well.\nAn individual should seek medical attention if experiencing eye pain, redness in the eye or blurred vision, states WebMD. Treatment may include prescription drops or pills, mild analgesics and the wearing of dark glasses. It is typically necessary to schedule follow-up visits with the doctor.

Continue Reading

How do you benefit from magnesium chloride?

Severe magnesium deficiencies are rare in humans. When they occur, it's generally a side effect of another condition, such as kidney failure, diabetes or alcohol abuse. Supplements cause side effects, such as loosening of the stool, diarrhea, cramps and nausea. Doctors recommend individuals suffering heart disease, kidney disease, heart disease or intestinal disease avoid the use of magnesium chloride. If taking other medication, the individual should discuss possible interactions with a pharmacist or doctor.\nMost people get the required magnesium from their diet. Sources include green, ..

Continue Reading

What is an example of a chemical reaction?

In a chemical reaction, the chemical composition of matter changes from one thing to another. When this occurs, there is typically a noticeable change. For example, heat, light or gas is given off, a solid forms inside a liquid, or there is a color shift. With a chemical reaction, it is impossible for materials to go back to the way they were before the change occurred.

Continue Reading

In which phase of meiosis does crossing over occur?

During prophase I, each of the homologous pairs of chromosomes can be seen as bivalent or as a grouping of two chromosomes said to be sister chromatids. The site at which the crossing over occurs on the sister chromatids is known as the chiasma. Prophase I is the longest phase during the meiosis process and takes up to 90 percent of the total time of cell division. Chromosomes also appear in this phase, the nucleus disappears, and the meiotic spindle appears in the cytoplasm.

Continue Reading
Showing 1171 to 1180 of 10000 (1000 Pages)