When taking a person's blood pressure, after proper inflation of the cuff, the first pulse sound that is heard through the stethoscope indicates that blood is flowing through the artery past the cuff. The reading on the pressure gauge at this point represents
A. that the heart is once again beating.
B. the force of contraction of the atria.
C. diastolic pressure.
D. venous pressure.
E. systolic pressure.
E. systolic pressure.
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Four of the five senses listed below belong to the
same category. Select the exception. a. touch or pressure b. olfaction c. balance (equilibrium) d. hearing e. muscle sense
Which of the following is correct concerning a spherical cell?
(A) As the diameter decreases, the surface area remains the same. (B) As the diameter decreases, the surface area increases. (C) As the diameter decreases, the surface-to-volume ratio increases. (D) As the diameter increases, the volume decreases. (E) The surface-to-volume ratio is independent of the diameter.
An ecologist studying effects of bees on seed production by flowering plants is working at which level of ecological complexity?
What will be an ideal response?
How might stem cells be used to treat disease?
What will be an ideal response?