Which of the following organelles is found in autotrophic, eukaryotic cells that gives plants it’s green pigmentation?

Which letter corresponds to the PZT crystal of the transducer in the following image?

Which of the following is a commonly used backing material for continuous wave Doppler transducers?

Large molecules are carried into the cell by means of

For an unfocused transducer, if frequency increases, the beam width will 

Which is a function of the receiver that is not sonographer controller? 

Which letter corresponds to the casing of the transducer in the following image?

What is the most likely cause for a beam thickness artifact?

Which of the following transducers would be most useful for good penetration on an obese patient? 

Transducers may be focused by internal focusing and external focusing.  These are accomplished by