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Primary structure - This is the sequence of the amino acids on the polypeptide chain. The amino acids are held together with covalent bonds. When mutations occur, they effect the prima...

You can only use the perfect tense, "haber + perfect participle" when something is either very recent or is still ongoing. "Ayer", yesterday, is definitely not still going on, and i...

For this question we will use the verb manger (to eat) as an example.

The perfect tense is used to describe an action which took place once in the past. You...

The first step in answering any question is to figure out what the question really means! Velocity is a term physicists use to describe not just speed, but speed in a particular direction. When we talk...

In order to find the lowest value for X we first need to find the lowest possible value for a and b.

Let us start off with a:

If a is the lowest possible cube number we can ...