Photo-operated devices fall into one of three categories. What are the categories?

What will be an ideal response?


Photo-operated devices fall into one of three categories: photovoltaic, photoemissive, and photoconductive.

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The type of roof labeled F is a _____.



a. gable roof
b. shed roof
c. gambrel roof
d. gable-and-valley roof

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In the poultry digestive system, food is stored in a crop and passed to the ____________________,

where is it ground up.

Fill in the blank(s) with the appropriate word(s).

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A palm up position is known as ____.

A. pronation B. flexion C. extension D. supination

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Hay is:

A. by law not allowed to contain legumes. B. only grown in developed countries where modern baling equipment is available. C. stored with a moisture content between 25 to 30%. D. considered to be the most important type of stored forage.

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