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Controls the movement of substances into and out of the cell.

There are three different physical state configurations of a substance, solid, liquid and gas. The different states are caused by the arrangement and movement of the particles that make up that substance....

The Earth is on a tilted axis, a full rotation takes 24 hours and this is our day length. As well as spinning on its axis, the Earth also orbits the Sun. This orbit takes 365 days to complete, but it's th...

First step is to take away 12 from both sides of the equation:5a + 12 = 37 (-12) 5a = 25 Second step is to then divide both sides by 5:5a = 25(÷5) Which gives you the final answer:a = 5

4(2x - 3) - 2(x - 5) [Remember that a negative multiplied by a negative makes a positive]
8x - 12 - 2x +10
6x - 2 [Check: can I simplify further?
2(3x -...