Genetically Modified Organisms A Brief History of Classification Taxonomy, the practice of classifying biodiversity, has a venerable history. Although early natural historians did not recognize that the similarities and differences among organisms were consequences of evolutionary mechanisms, they still sought a means to organize biological diversity. In Carl Linn proposed a system that has dominated classification for centuries. Linnaeus gave each species two names, denoting genus and species such as Homo sapiens.
The westerlies and trade winds Winds are part of Earth's atmospheric circulation Easterly winds, on average, dominate the flow pattern across the poles, westerly winds blow across the mid-latitudes of the earth, polewards of the subtropical ridgewhile easterlies again dominate the tropics.
Directly under the subtropical ridge are the doldrums, or horse latitudes, where winds are lighter.
Many of the Earth's deserts lie near the average latitude of the subtropical ridge, where descent reduces the relative humidity of the air mass. Trade wind and Monsoon The trade winds also called trades are the prevailing pattern of easterly surface winds found in the tropics towards the Earth's equator.
The term was first used in English in India, BangladeshPakistan, and neighboring countries to refer to the big seasonal winds blowing from the Indian Ocean and Arabian Sea in the southwest bringing heavy rainfall to the area. These prevailing winds blow from the west to the east,   and steer extratropical cyclones in this general manner.
The winds are predominantly from the southwest in the Northern Hemisphere and from the northwest in the Southern Hemisphere. The westerlies can be particularly strong, especially in the southern hemisphere, where there is less land in the middle latitudes to cause the flow pattern to amplify, which slows the winds down.
Polar easterlies The polar easterlies, also known as Polar Hadley cells, are dry, cold prevailing winds that blow from the high-pressure areas of the polar highs at the north and south poles towards the low-pressure areas within the Westerlies at high latitudes.
Unlike the Westerlies, these prevailing winds blow from the east to the west, and are often weak and irregular. Local considerations[ edit ] Local winds around the world. These winds are formed through the heating of land from mountains or flat terrain Sea and land breezes[ edit ] Main article: Sea breeze occurs at daytimeB: Land breeze occurs at night In coastal regions, sea breezes and land breezes can be important factors in a location's prevailing winds.
The sea is warmed by the sun more slowly because of water's greater specific heat compared to land. The warm air is less dense than the surrounding environment and so it rises. The cooler air above the sea, now with higher sea level pressureflows inland into the lower pressure, creating a cooler breeze near the coast.
When large-scale winds are calm, the strength of the sea breeze is directly proportional to the temperature difference between the land mass and the sea. At night, the land cools off more quickly than the ocean because of differences in their specific heat values.
This temperature change causes the daytime sea breeze to dissipate. When the temperature onshore cools below the temperature offshore, the pressure over the water will be lower than that of the land, establishing a land breeze, as long as an onshore wind is not strong enough to oppose it.
The wind flows towards a mountain and produces a first oscillation A. A second wave occurs further away and higher. The lenticular clouds form at the peak of the waves B.
Over elevated surfaces, heating of the ground exceeds the heating of the surrounding air at the same altitude above sea levelcreating an associated thermal low over the terrain and enhancing any thermal lows that would have otherwise existed,   and changing the wind circulation of the region.
In areas where there is rugged topography that significantly interrupts the environmental wind flow, the wind circulation between mountains and valleys is the most important contributor to the prevailing winds.
Hills and valleys substantially distort the airflow by increasing friction between the atmosphere and landmass by acting as a physical block to the flow, deflecting the wind parallel to the range just upstream of the topography, which is known as a barrier jet.
The airflow can remain turbulent and erratic for some distance downwind into the flatter countryside.
These conditions are dangerous to ascending and descending airplanes. In Europe, similar winds are known as the BoraTramontaneand Mistral.
When these winds blow over open waters, they increase mixing of the upper layers of the ocean that elevates cool, nutrient rich waters to the surface, which leads to increased marine life.Industry classification or industry taxonomy is a type of economic taxonomy that organizes companies into industrial groupings based on similar production processes, similar products, or similar behavior in financial markets.
A. A1C A form of hemoglobin used to test blood sugars over a period of time. ABCs of Behavior An easy method for remembering the order of behavioral components: Antecedent, Behavior, Consequence. Free Oscar Wilde Importance of Being Earnest papers, essays, and research papers.
Remote Wind Power Plants. Most probably you are sitting in a big city and reading this article from the comfort of your home or office without having any real experience of the power shortage faced in remote parts of the world.
history of education in schools in England. Progress towards a state system of schools in the period Soil - Soil classification: The two principal systems of soil classification in use today are the soil order system of the U.S.
Soil Taxonomy and the soil group system, published as the World Reference Base for Soil Resources, developed by the Food and Agriculture Organization (FAO) of the United Nations. Both of these systems are morphogenetic, .