The main parts of a working clothes dryer are shown in the diagram Drum
Heating duct and element
Motor

This appliance dries clothes primarily by converting -

the correct answer is:

a population changes in response to a change in the environment.

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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