Smoking quickly impairs the respiratory system, including the ____ reflex, a vital protective response
a. swallow
b. spit
c. blink
d. sniff
e. cough
e
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Answer the following statements true (T) or false (F)
1. A pacemaker substitutes for the natural pacemaker of the heart. 2. An antilipidemic medication prevents cardiac arrhythmias. 3. A thrombolytic medication dissolves clots. 4. An EMG is a record of the electrical activity of the heart. 5. The abbreviation PDA stands for a congenital heart anomaly in which the connection between the aorta and pulmonary artery fails to close at birth.
Alcohol is a central nervous system ________.
Fill in the blank(s) with the appropriate word(s).
When removing positive consequences, all of the following are effective EXCEPT
A) charting students' misbehaviors to see if frequency is decreasing. B) making sure that the extent of the removal fits the behavior. C) allowing for individual differences with consequences. D) making sure students understand the consequences before giving penalties.
How many pairs of chromosomes do human cells normally contain?
A. 32 B. 46 C. 23 D. 12