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a pronoun that points out a person or thing e.g. That is Johnâ??s. This belongs to me.


to change the structure of a protein so that it can no longer carry out its function.


outgrowths of neurons (nerve cells) that transmit nerve impulses towards the cell body.


a variable that depends entirely on another variable for its value (in other words, the variable...

the direct, literal meaning of a word, rather than the ideas or emotions associated with a word...