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Active transport is the transport of substances against their concentration gradient with the use of energy. Molecules naturally flow down their concentration gradient, ie. from where they are more concen...

We will begin by eliminating fractions in the equation. To do this, the equation will be multiplied by 4 and (x+2), as these are the denominators of the two fractions.
Multiplying by 4 gives:x - (8x/...

As you breathe in, air passes down your trachea and then into the bronchi and bronchioles. The bronchioles divide further into even narrower branches which end in small air filled sacks called alveoli. Th...

The shape is a figure of 8 across all three axis, with a node at the origin

It relates back to what we actually mean why we say dy/dx. Simply put, dy/dx means the rate of change of y with respect to the rate of change in x over a infinitely small space of time. Therefore, when we...