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Organic compounds contain carbon atoms bonded to other atoms.

Explanation:

The organic compounds have as a fundamental element carbon, an element which is tetravalent because it has four covalent bonds. Carbon can form chains of variable length, thanks to that. You can also find hydrogen in those chains that's why we can say that the organic compounds are formed by hydrocarbon chains (carbon and hydrogen)

i think b?

Explanation:

yes we can.   a lady urinates from her urethra.

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.