Mitosis produces an exact copy of the original containing the same 46 chromosomes as the original cell
Meiosis produces 4 individual sex cells ( gametes) with only 23 chromosomes in each. This is so when a sperm cell and and egg cell meet the combine to make 46 total chromosomes with genes from each parent
        
                    
             
        
        
        
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Answer for question 2:
It is important to receive data from three separate locations because the more we know  about the seismic waves and the places that they are more we gain for learning  about them.
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Role of organisms in the nitrogen cycle:
Bacteria play a central role: Nitrogen-fixing bacteria, which convert atmospheric nitrogen to nitrates. Bacteria of decay, which convert decaying nitrogen waste to ammonia. Nitrifying bacteria, which convert ammonia to nitrates/nitrites.
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The sequence of B) nucleotides in a DNA molecule determines the protein that will be produced.
        
                    
             
        
        
        
Global winds are winds that appear in belts that go all around the world. Like local winds, global winds are driven by unequal heating of the atmosphere. Since global winds blow west to east, it helps humans travel west to east.
<h3>How global winds influence climate?</h3>
Global wind belts and calm regions have an effect on, is that the berg winds blow from the east and die out as they are available close to the equator. 
The westerlies blow from the west and move storms across u. s. The easterlies blow from the east and they cause stormy weather to occur once cold air forms this belt meets heat air of the westerlies.
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