A chemical reaction occurs when chemical bonds in an existing molecule are broken and new ones are formed.
Answer the following statement true (T) or false (F)
True
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A sneeze expels irritant material mainly from the esophagus
Indicate whether the statement is true or false
A marathon runner was perspiring heavily. Which function of sweat was occurring?
A. Absorbing heat into the body B. Absorbing enzymes into the body C. Releasing heat from the body D. Releasing enzymes from the body
The neuromodulators in the brain’s pain suppression system function similarly to
1.aspirin. 2.morphine. 3.substance P. 4.norepinephrine. 5.acetylcholine.
Which statement accurately describes total blood flow?
A. Total blood flow equals cardiac output and is a fixed number given that there is a finite amount of blood in the body. B. Total blood flow equals cardiac output and can vary significantly over time with activity levels. C. Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in liters. D. Total blood flow is measured as the sum of blood flow to upper and lower extremities and is measured in beats per minute. E. Changes in total blood flow are accompanied by equivalent changes in local blood flow in all areas of the body.