Approximately 70-80 percent of cancers in the aging population are the result of
A) inadequate diets.
B) genetics.
C) chemical exposure or environmental factors.
D) smoking.
E) remission.
C) chemical exposure or environmental factors.
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The sympathetic division of the ANS reduces blood flow to which of the following?
A. The skin B. The skeletal muscles C. The heart D. The lungs E. The brain
Athletes abuse erythropoeitin (EPO) because it
A) increases the red blood cell supply, which depletes oxygen from muscle cells. B) decreases the red blood cell supply, which brings more oxygen to muscle cells. C) increases the white blood cell supply, which prevents infection. D) increases the red blood cell supply, which brings more oxygen to muscle cells.
The tube that connects the oral cavity to the stomach is called the ________
A) esophagus B) small intestine C) trachea D) oral canal
This is the most common type of cell in connective tissue proper:
a. keratinocyte b. osteocyte c. fibroblasts d. red blood cell