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Plants absorb nitrates in water through their roots. Nitrates are present in high levels in plant fertilisers. Without nitrates, the amount of chlorophyll in leaves reduces. ... This reduces the plant's ability to photosynthesise and grow properly, which reduces the farmers' crop yield .
Bacterial cell membranes do not have cholesterol. The principal function of the cell membrane is to regulate the substances that enter the cell and the substances that move out of the cell. Cholesterol is a fat like substance that is found in all human cells; it is an important constituent of the cell membrane and it enhances the fluidity of the cell. Bacterial have plasma membrane but the membrane do not contain cholesterol.
<span>The anterior cingulate cortex is the part of the brain that has to do with the connection between thinking and emotions, when areas like these are overly stimulated by congenital disorders like anxiety disorders they may be treated by a partial destruction of this area which could lower the synaptical activity of this area.</span>
<span>The Ancon sheep was bred by humans because ranchers did not need to build high fences to contain it.
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Two of these moving plates meet in western California; the boundary between them is the San Andreas fault. The Pacific Plate (on the west) moves northwestward relative to the North American Plate (on the east), causing earthquakes along the fault.
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