Ques:Q: What structures formed of twisted actin chains are found in almost every cell, and are numerous in muscle cells and cells that move by changing shape? Choices: - RNA - DNA - vesicles - microfilaments A:

Ans:microfilaments
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Ques:Q: What are scientists called who study the weather and give forecasts? Choices: - climatologists - geologists - botanists - meteorologists A:

Ans:meteorologists
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Ques:Q: What liquid is referred to as the "universal solvent"? Choices: - bromine - gasoline - blood - water A:

Ans:water
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Ques:Q: What are compounds with the same number of carbon and hydrogen atoms called? Choices: - alcohols - hydrocarbons - monomers - isomers A:

Ans:
isomers
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