What part of the leaf cell contains chlorophyll and carries out photosynthesis?
a. mesophyll c. petiole
b. epidermis d. chloroplast
D
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A glazing stop is used ___________.
A) to provide lateral support to glass. B) to provide a cushion between the glass and the glazing pocket. C) to seal the glass against water and air infiltration. D) as a bearing support for glass. E) none of the above.
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Obtain the node voltages v?, v?, and v? in the circuit of Fig. 3.81.
 FIGURE 1.png)
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Sampling produces a digital representation of an analog signal by
A) using an oscilloscope. B) continuously displaying the analog waveform. C) continuously graphing the waveform. D) taking measurements at specific times on the analog waveform.
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The ____ is sent to the final control element.
A. measured variable B. feedback signal C. error signal D. control signal
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