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Homeostasis is the maintenance of the internal environment to a constant state, despite changes to the external environment. Examples of conditions in the body which must be kept constant include body...

You will be presented with two equations, both with two unknown values. For example:

8x-2y=19

and

3x=5+y

To begin, we are going to move both unknown terms in ...

The colour of the sky comes from sunlight scattering off of the air molecules (and to your eyes). Blue light gets scattered more than red light because it has a shorter wavelength, and so the light yo...

Neurotransmission, put simply, is how your brain controls your body. It occurs by the passage of action potentials (electrical signals) across a synapse betwee...