Protein is required for the growth and maintenance of tissues.
Enzymes are proteins that allow chemical reactions to take place within your body.
Amino acid chains of various lengths form protein and peptides which make up several of your body’s hormones and transmit information between your cells, tissues and organs.
A class is proteins known as fibrous proteins provide various parts of your body with structure, strength and elasticity.
Proteins act as a buffer system, helping your body maintain proper pH values of the blood and other bodily fluids.
Proteins in your blood maintain the fluid balance between your blood and the surrounding tissues.
Proteins form antibodies to protect your body from foreign invaders, such as disease-causing bacteria and viruses.
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The global wind belt refers to the circulation of winds in the surface of the earth and can be divided into three: The (1) polar easterlies at 60-90 degrees latitude, the (2) prevailing westerlies or simply westerlies at 30-60 degrees latitude, and the (3) tropical easterlies or trade winds at 0-30 degrees latitude. The United States is located at 30-60 degrees latitude (with exception of Florida at around 25-27 degrees latitude), therefore the direction of the prevailing winds or the westerlies in the United States is going from the west towards the north.
Answer:
Beavers build dams, dig channels, and change small streams into broad wetland areas. Their ponds and channels in particular slow down water and spread it out in the landscape. This gives that water more time to soak into the soil, which ultimately keeps plants green and lush even during periods of drought.
Explanation:
Temperatures are rising world-wide due to greenhouse gases trapping more heat in the atmosphere.
• Droughts are becoming longer and more extreme around the world.
• Tropical storms becoming more severe due to warmer ocean water temperatures.
• As temperatures rise there is less snowpack in mountain ranges and polar areas and the snow melts faster.
• Overall, glaciers are melting at a faster rate.
• Sea ice in the Arctic Ocean around the North Pole is melting faster with the warmer temperatures.
• Permafrost is melting, releasing methane, a powerful greenhouse gas, into the atmosphere.
• Sea levels are rising, threatening coastal communities and estuarine ecosystems.
Answer:
The correct option is A. The genetic variation introduced during recombination provides new allelic combinations for natural selection to act upon.
Explanation:
Recombination will lead to more possibilities for allelic combinations. This will result in increase in the number of genetic variations for a population.. The genetic variations in a population help the organisms to better adapt to different environmental conditions. If genetic variation is low for a population, then there are more chances for the population to become extinct or endangered when disasters occur. Many ecologists blame lack of genetic variation for extinction of different species.
