Having personal control stops you from making bad decisions concerning your activity and your diet. Having optimism keeps you happy and can motivate you to do what you need to do.
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Answer:

.
- <em>ZN</em><em> </em><em>(</em><em>metal</em><em>)</em>
- <em>SU</em><em> </em><em>(</em><em>metal</em><em>)</em>
- <em>S</em><em> </em><em>(</em><em>non metal</em><em>)</em>
- <em>O</em><em>(</em><em>non metal</em><em>)</em>
- <em>I</em><em> </em><em>(</em><em>non metal</em><em>)</em>
- <em>Na</em><em> </em><em>(</em><em>metal</em><em>)</em>
- <em>Al</em><em> </em><em>(</em><em>metal</em><em>)</em><em>.</em><em>.</em><em>.</em>
<em>.</em>
<em>I </em><em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em> </em><em>you</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em><em>.</em>
Answer:
Essential amino acids
Explanation:
The amino acids that cannot be synthesized by a cell and must be provided by any other source are called essential amino acids. For instance, proteins are made up of 20 standard amino acids. The cells in humans are incapable of synthesizing many amino acids which in turn are called essential amino acids. Histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine are the essential amino acids that must be taken in diet.
The advantage gained by staining cells are the following:
- provides a better and clear image of the cell's structure
- staining will help in differentiating the different parts of the cell
- this will enhance its view under the microscope.