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Life is a complex thing that can be really hard to define. There are may different definitions, none that absolutely everyone can agree on, so we tend to describe it according to the context to which we a...

Chloroplasts are organelles found only in plants that allow the plant to release energy from sunlight through photosynthesis. They are green in colour because they contain the pigment chlorophyll.

It is better to think of it as substituting one equation into another, rather than thinking of it as ‘making it equal to zero’. Say you have a quadratic equation y = x^2 - x - 6 and you want to find it’s ...

using the Pythagoras formula: a^2 + b^2 = c^2 the longest measurement is always the hypotenuse due to the orientation of a triangle and so c is the hypotenuse leaving the a and b to be the two measuremen...

We must find a common denominator between the fractions to be able to add them (the bottom numbers must be the same). A common denominator of 5 and 7 is 35. To get to 35 from 5 we multiplied by 7, therefo...