Carbon atoms are the basis for all life on earth. carbon atoms are found in all the molecules that make up living organisms—carbohydrates, lipids, proteins, and nucleic acids. why is carbon important in the earth’s ecosystems? a. carbon originates in sunlight. b. carbon is produced in the nitrogen cycle. c. carbon atoms are found in molecules of all living organisms. d. carbon atoms are found only in nonliving matter.

Carbon is compound of the organic complex molecules and has unusual ability to form polymers. Because of its tetravalent properties ( able to form four covalent chemical bonds), carbon is often bonded with many other elements, especially oxygen, hydrogen and nitrogen which enables this element to serve as a common element of all known life.

is C.

Explanation: took the test!

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the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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answer; ///(b) it is composed of four protein chains and four heme groups;