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Newton's First Law states that an object will continue moving at the same velocity in the same direction unless a resultant force acts upon it. This applies to stationary objects too - if an object is sti...

An impermeable membrane is one through which no substance can pass. Semipermeable membranes are those which only let solvents, such as water, pass through them. Permeable membranes are those which let sol...

To understand how water is reabsorbed in the loop of Henle, it helps to first consider what happens in the ascending limb. The ascending limb is permeable to ions but impermeable to water. Ions are pumped...

The pluperfect refers to an action at a time earlier than a time in the past already referred to. For example: "j'avais mangé avant de partir".

So to form the pluperfect tense we use the ...

Intro: (Present factors you will be using in the order you will address them and state your argument) The role of the sheriff fluctuated dependent on kingship; but a general trend saw their duties placed ...