Ques:Answer the following question given this paragraph: Accuracy means making measurements that are close to the true value. Q: What is making measurements that are close to the true value known as? Choices: - estimation - frequency - prediction - accuracy A:

Ans:accuracy
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Ques:Answer the following question given this paragraph: Bacteria lack many of the structures that eukaryotic cells contain. For example, they don't have a nucleus. They also lack membrane-bound organelles, such as mitochondria or chloroplasts. The DNA of a bacterial cell is also different from a eukaryotic cell. Bacterial DNA is contained in one circular chromosome, located in the cytoplasm. Eukaryotes have several linear chromosomes. Bacteria also have two additional unique features: a cell wall and flagella. Some bacteria also have a capsule outside the cell wall. Q: How many chromosomes do bacterial dna have? Choices: - one rectangular chromosome - one triangular chromosome - one simple chromosome - one circular chromosome A:

Ans:one circular chromosome
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Ques:Answer the following question given this paragraph: Analytical chemistry is the study of the composition of matter. It focuses on separating, identifying, and quantifying chemicals in samples of matter. An analytical chemist may use complex instruments to analyze an unknown material in order to determine its various components. Q: What type of chemistry is the study of the composition of matter? Choices: - philosophical - reactive - symbolic - analytical A:

Ans:analytical
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Ques:Answer the following question given this paragraph: lead: An element that was once commonly used in gasoline and paint, is now found to have dangerous effects, such as brain damage. Lead contamination has many harmful effects on the body. Q: What element once commonly used in paint and gasoline has now been found to have dangerous effects? Choices: - plastic - chromium - niacin - lead A:

Ans:
lead
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