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x=3,y=2

The German tense of Imperfekt is used when describing situations that occured in the and which have no influence on the present. It is also used when talking about states and feelings in the past. Additio...

Proteins have a primary, secondary, tertiary and quaternary structure. The primary structure comprises of the specific sequence of amino acids which are held together by peptide bonds. The secondary struc...

One of the most important studies into classical conditioning was done by Pavlov. In his experiment he aimed to prove how learning by association produces conditioned responses. To do this, he paired a ne...