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Biology Test Questions and Answers (Q&A)

Living organisms are incredibly complex biological machines, working to continue life. However, at our core, we are pretty simple and have the same basic unit, the cell. Then many similar cells working together to perform the same function form a tissue. Now different tissues serve different function.

However, many different tissues working together to perform one major function is called an organ. Now the thing is that the cells are made of multiple different things. Breaking them down individually will leave us with proteins, fats, carbs and vitamins minerals and other stuff which are basically molecules. So, the order is molecule, cell, tissue, and organ.

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The correct answer to this question is A. The pH is a scale used to measure the acidity or basicity of a solution in which water is the solvent. The scale goes from 0 (most acidic) to 14 (most basic), with 7 being neutral. If the pH goes from 5 to 8, then you can see from the scale that substance goes from acidic to basic.

As reference, one of the most acidic substances is battery acid while one of the most basic is drain cleaner. An example of a neutral substance is blood, which has a pH of 7.4.

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He must be in trouble at school ,because at cshool you should of came to school looking nice not wearing saggy pants , or long T-Shirt , and a long neckless

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