A red blood cell is a(an) ________.
Fill in the blank(s) with the appropriate word(s).
erythrocyte
-erythr(o) is red, -cyte is blood
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tracheostomy : Surgical creation of a(n) __________ into the trachea, usually for insertion of a breathing tube.
Fill in the missing word in the definition for the key term.
Your friend Reanna asks you about cancer prevention methods that go beyond lifestyle changes. You inform her about Gardasil and Cervarix, which protect against infection by two high-risk types of human papillomavirus (HPV). What percentage of cervical cancers, worldwide, are associated with those two types of HPV?
a. % b. 60 % c. 80 % d. 70 %
Barium is used as a radiopaque X-ray dye
Indicate whether the statement is true or false
The average life expectancy for a chronic smoker is about ____ years shorter than for a nonsmoker
a. 5 to 6 b. 8 to 9 c. 10 to 11 d. 13 to 14 e. 15 to 16