Which of the following is NOT a mutagenic factor (causes mutations)? O chemicals we smoke or eat
O drinking water
O X-rays
O tanning

What two fields of study provide the core information that is used to classify organisms?

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The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes