15. The detailed record of the heartbeat is an instrument that provides a a. Ele

Question

15. The detailed record of the heartbeat is an instrument that provides a a. Electrophysiograph c. Defibrillator b. Electrocardiogram d. Cardiophysiometer 16. The sum of the number of neutrons and protons in the nucleus of an atom is known as a. Element number c. Mass number b. Atomic number d. None of the above choices are correct. 17. Swallowed food or fluid is prevented from entering the trachea by the a. Pharynx c. Epiglottis b. Larynx d. Saliva 18. Which of the following is not considered an obstructive pulmonary disorder? a. Chronic bronchitis c. Asthma b. Emphysema d. Pulmonary fibrosis 19. Protein fibers called--- are involved in cell movement. a. Centrioles c. Actin filaments b. Microtubules d. Intermediate filaments 20. A typical fat molecule consists of a. Glycerol c. Glycogen b. Fatty Acids d. Glycerol and Fatty Acids

Explanation / Answer

15. Option B is correct. The electrocardiogram is an instrument that provides a detailed record of the heartbeat.

16. Option C is correct. The sum of the number of protons and neutrons in the nucleus of an atom is known as mass number.

17. Option C is correct. Swallowed food or fluid is prevented from entering the trachea by the epiglottis.

19. Option C is correct. Protein fibers called actin filaments are involved in cell movement.

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