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PilotLPTM [1.2K]
4 years ago
6

Which statement best describes a physical change?

Biology
1 answer:
garik1379 [7]4 years ago
6 0

Answer:

Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same.

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Which is true of both DNA and RNA
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C. They contain sugars, phosphate, and nitrogenous bases

Explanation:

A. is wrong because only RNA is made up of single strands of nucleotides, while DNA is a double-stranded helix.

B. is wrong because DNA and RNA are examples of nucleic acids, not carbohydrates

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C. is correct because both DNA and RNA have sugar-phosphate backbones and nitrogenous bases. The difference between RNA and DNA is seen in their names--deoxyribo nucleic acid (DNA) vs. ribo nucleic acid (RNA). Ribose is a type of sugar, the same as found in RNA, while deoxyribose (in DNA) is the same except for not having an oxygen atom on the 2' Carbon (de-oxy = without oxygen).

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hope it helped!

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Complete the following sentence.
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Answer is the Blending process
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