Ques:Q: Methyl groups are found within what? Read this paragraph and choose the correct option from the provided answers: Methyl groups are found within amino acids. Choices: - rna acids - DNA molecules - peptide chains - amino acids A:

Ans:amino acids
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Ques:Q: What type of oil is being explored to replace petroleum products in lubricants? Read this paragraph and choose the correct option from the provided answers: Vegetable oils are being explored for a variety of uses in which they could replace petroleum products. One such application is in the field of lubricants. Every moving part in machinery (such as engine pistons) needs lubrication to decrease friction and prolong the life of the equipment. Petroleum products serve this purpose now, but are not good for the environment. New techniques for making specialized esters from vegetable oil are being explored that will make the compounds more stable and more useful as lubricants. Choices: - essential oil - diesel - whale oil - vegetable A:

Ans:vegetable
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Ques:Q: Acceleration is a vector, and thus has a both a magnitude and what else? Read this paragraph and choose the correct option from the provided answers: Acceleration is a vector, and thus has a both a magnitude and direction. Acceleration can be caused by either a change in the magnitude or the direction of the velocity. Instantaneous acceleration a is the acceleration at a specific instant in time. Deceleration is an acceleration with a direction opposite to that of the velocity. Choices: - temperature - pressure - wavelength - direction A:

Ans:direction
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Ques:Q: In essence, a virus is simply a nucleic acid surrounded by what? Read this paragraph and choose the correct option from the provided answers: A virus is a sub-microscopic particle that can infect living cells. Viruses are much smaller than prokaryotic organisms. In essence, a virus is simply a nucleic acid surrounded by a protein coat, as seen in the Figure below . This outer coat is called a capsid . Viruses will be discussed in more detail in the Viruses concepts. Choices: - a membrane coat - a polymer coat - a polypeptide - a protein coat A:

Ans:
a protein coat
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