What is considered a normal blood pressure?
a. 100 / 60
b. 65 / 100
c. 80 / 120
d. 120 / 80
e. 140 / 120
d
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Each of the following statements correctly describes an action potential EXCEPT which one?
A) Once triggered, an action potential always looks the same in form and voltage. B) An action potential continues to propagate itself into the next region of an axon. C) Action potentials are propagated by the sodium-potassium pump. D) Action potentials include a depolarization phase followed by a repolarization phase. E) Action potentials temporarily reverse the polarization of the axon membrane.
Which of the following best describes the photosynthetic membranes of Chlorobia?
A. Accessory bacteriochlorophylls are located in the plasma membrane, but the reaction center bacteriochlorophyll is located in the chlorosomes. B. Accessory bacteriochlorophylls are located in the chlorosomes, but the reaction center bacteriochlorophyll is located in the plasma membrane. C. Accessory and reaction center bacteriochlorophylls are located in the chlorosomes. D. Accessory and reaction center bacteriochlorophylls are located in the plasma membrane.
What is the major product of the Calvin-Benson cycle that can then be used to form glucose?
A) CO2 B) ATP C) RuBP D) glyceraldehyde 3-phosphate E) NADPH
The area on the retina that has the greatest density of cone cells is called the ____
a. fovea b. visual ganglion c. lateral geniculate nucleus d. visual cortex e. blind spot