The relative efficiency of a lever is proportional to which of the following?
A. mechanical advantage of the lever
B. length of the force arm
C. length of the resistance arm
D. the amount of force needed to move the lever
A. mechanical advantage of the lever
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A person with alkalosis has a blood pH less than 7.3.
Answer the following statement true (T) or false (F)
All leukocytes ultimately originate from common precursor undifferentiated pluripotent stem cells in the spleen
a. True b. False Indicate whether the statement is true or false
Which of the following INCORRECTLY describes mechanisms of CO2 transport?
A) as bicarbonate ions in plasma B) 7-10% of CO2 is dissolved directly into the plasma C) just over 20% of CO2 is carried in the form of carbaminohemoglobin D) attached to the heme part of hemoglobin
In a negative feedback mechanism the response is ________ the stimulus
A) None of the listed responses is correct. B) to enhance C) no change to D) to reduce