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The atria have a shorter contraction time as the ventricles as they only need to pump blood into the ventricles. The contraction time of the ventricles is longer as they need to pump blood through the aor...

To begin we need to simplify the expression. First we multiply out (4x–5)^2 to get 16x²+40x+25 and then we multiply out 5x(3x – 8) to get 15x²-40x. This makes the whole expression 16...

A curve crosses the x-axis when y=0, if we put that into the equation above we get the quadratic equation 0=8-4x-2x². The solutions to this equation are the values of x where y=0, which is the ...

We must remember that negative energies (in any context) generally represent energetically stable configurations and as the energy of a system increases, it will become more unstable.

Firstly, ioni...

Mitosis is the process by which a cell divides to give rise to two identical diploid daughter cells and is how all somatic cells are produced. Meiosis is the process by which a cell gives rise to four gen...