Which of the following remains constant in Earth's carbon cycle? o the total mass of available carbon
O the way organisms use carbon
O the physical state of carbon-containing molecules
O the molecule in which a particular carbon atom is found

the molecules in which a particular atom is found.

Explanation:

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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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the endomembrane system i think