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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Migirigi (:

the answer is c) an oak tree

hey, i believe your answer would be d. sugar ribose and the base uracil. i believe this is the answer, because rna consists of sugar ribose, adenine, guanine, cytosine, and uracil.

your first option is incorrect, because that's dna. where it consists of sugar deoxyribose, adenine, guanine, cytosine and thymine.

your second option is also incorrect, this is because sugar deoxyribose is in dna, and uracil is in rna. these two do not make sense together.

your third option being incorrect, because sugar ribose is in rna, but not the base of thymine. rna consists of uracil, not thymine.

lastly your fourth option being correct! this answer is correct, because both sugar ribose, and the base uracil are in rna! ~

answer is d. sugar ribose and the base uracil.