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Probably the most apparent change during the industrialisation in the late 18th century, early 19th century is that urbanisation began. People moved to cities in the hope of getting a job there, since the...
Immunisation introduces a specific antigen into the body. This is recognised as foreign and stimulates B lymphocytes to produce plasma cells and memory cells. Plasma cells go on to secrete specific antib...
Don't panic, focus on what you do know.You know 6/n * 5/(n-1) = 1/3or 30/(n^2-n) = 1/3simplify this to reach the target expression.
The two types of nucleic bases are purines and pyrimidines. The purines are adenine and guanine, and the pyrimidines are cytosine and thymine. Purines always bond with pyrimidines and in DNA, adenine and ...
No, sodium is left in solution and forms Sodium Hydroxide due to Sodium reacting with OH- ions. This happens because sodium is much more reactive than hydrogen.
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