A free radical is a
A. trigger for cervical cancer.
B. substance that produces precancerous cellular damage.
C. cancerous tumor.
D. pathogen that promotes several types of cancers.
E. deadly form of skin cancer.
B. substance that produces precancerous cellular damage.
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Which suggestion could help reduce air pollution?
A) Discard paint properly after it has been used. B) Use an inside-venting hood when cooking. C) Keep your car tuned up and well maintained. D) Replace compact fluorescent bulbs with incandescent bulbs.
The second proximal interphalangeal joint is classified as:
A. arthrodial. B. enarthrodial. C. ginglymus. D. trochoid.
Any kidney tumor is called a (n) ________.
Fill in the blank(s) with the appropriate word(s).
A normal conversation at a distance of three feet generates about 90 decibels
Indicate whether the statement is true or false