Which part of the male reproductive system is a pouch that contains the testes

because the light is a great source of energy for the plants to survive. (i hope this )

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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c should be the answer