The heart is located in which body cavity?
A. abdominal cavity
B. thoracic cavity
C. pelvic cavity
D. cranial cavity
Answer: B
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Carboxyfluorescein succinimidyl ester (CFSE) can be used to track cell division because
A. after pulsing the cells with it, dividing cells will incorporate more into their DNA. B. after pulsing cells with it, dividing cells will incorporate more into their proteins. C. its intensity is cut in half, approximately, when DNA replicates. D. its intensity is cut in half, approximately, when the cell divides. E. None of the above.
Groundwater makes up 95 percent of the world's supply of fresh water.
Answer the following statement true (T) or false (F)
Which of the following is NOT an indicator that a person's sympathetic nervous system has been activated?
A) increased heart rate
B) increased respiration
C) increased salivation
D) increased blood pressure
Stress can aggravate a skin condition called rosacea, which is characterized by ____.?
A) ?red itchy patches and thick flaky lesions B) ?enlarged facial blood vessels that produce flushing C) ?itchy rash that exudes puss and blood D) ?little crusty pimples E) ?hairy lesions that look similar to moles