Which of the following is not organic?
A. Enzymes
B. Nucleic acids
C. Lipids
D. Sodium chloride
Answer: D
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Medial means "to the side."
Answer the following statement true (T) or false (F)
Which of the following statements regarding vision is FALSE?
A. Cataract is an increase in opacity (clouding) of the lens. B. Presbyopia is a condition in which the lens cannot accommodate adequately for near vision. C. The image of an object that is focused on the retina is upside down relative to the object's actual position in space. D. Myopia is a condition in which the lens focuses light from distant objects behind the retina. E. The cornea refracts light rays more strongly than the lens.
Answer the following statements true (T) or false (F)
1. An ECG is a graphic representation of the heart’s electrical activity. 2. An unusual P wave tracing on an ECG would indicate a problem with ventricular depolarization. 3. The QRS complex on an ECG measures the repolarization of the ventricles. 4. The T wave tracing measures atrial repolarization. 5. Depolarization occurs just before contraction.
Which of the following is produced by certain activated t-lymphocytes to induce apoptosis of infected cells?
A. Perforins
B. Granzymes
C. Interferon
D. Lysozyme