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During prophase chromatin condenses and supercoils, and so the chromosomes become visible. The nuclear envelope breaks down and the centrioles migrate to opposite poles of the cell and start to produce th...

'La mayoría de la población hispánica habla español, pero no todos.'

This really depends on the University you're applying to. For Oxbridge applications, extra-curricular information should take up as little as 20% of your character count. Some Universities, for example Du...

The chemical equation is as follows:

CaCO_3(s)+2HCl_(aq)--->CO_2(g)+H₂O(l)+CaCl_2(aq)

The general formula for an acid reacting with a ca...

There should be at least as many simultaneous equations as there are unknown variables - or else you cannot get a numerical answer! Start by trying to eliminate one of the variables. You can multiply the ...