Leaves are part of a plant's shoot system. the xylem tissue in leaves transports - a the bacteria needed for nitrogen fixation in root nodules b the wax required to coat the surface of actively growing tissue cthe water and minerals that are absorbed by the roots d the oxygen that regulates the rate of carbohy- drate production

C

Explanation:

Xylem only goes away from the roots and it transports the water and minerals that it absorbs

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

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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