Rebekah is studying a molecule and trying to determine if it is dna or rna. which kind of molecule is she studying?

a-carbohydrate
b-protein
c-nucleic acid
d-lipid

Ans. (C).nucleic acid.

Nucleic acids are complex organic biomolecules, which are found in all living organisms. They are made up of nucleotides and are of two types, DNA and RNA.

The DNA molecules are made up of deoxyribose sugar (which lacks 2'-OH group), phosphate molecule, and nitrogen bases (cytosine, thymine, guanine, and adenine). On the other hand, RNA molecules are made up of ribose sugar (having 2'-OH group), phosphate molecule, and nitrogen bases (cytosine, uracil, guanine, and adenine).

So, Rebekah is studying the nucleic acid molecule that can be either DNA or RNA.

Thus, the correct answer is option (C).

answer; /// i believe the name your looking for is called (plaque)or check good luck

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."