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The change from resting potential to action potential is caused by the stimulation of a recpetor, this causes a chain reaction which eventually leads to a positive environement inside the...

Osmoreceptors in the hypothalamus detect a change in the water potential of blood, this stimulates neurosecretory cells to make and release ADH. ADH travels down the axon to the terminal bulb in the poste...

First Past the Post is an electoral system used in countries such as the USA and the UK to elect representatives. It works in a very simple way: the candidate who recieves the most votes wins. So, for exa...

Judicial review is an exclusive power of appellate courts, most importantly the US Supreme Court (SCOTUS). It is able to  overturn any judicial ruling from another court (at federal or state level) or to ...

A catalyst lowers the activation energy of a reaction. It does this by providing an alternative, lower energy pathway for the reaction. An example of this - a catalyst may form a complex with the reactant...