Answer: <u><em>The DNA molecule consists of two strands that wind around one another to form a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups</em></u>
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Explanation: <u><em>Each DNA strand is composed of nucleotides—units made up of a sugar (deoxyribose), a phosphate group, and a nitrogenous base. Each strand of DNA is a polynucleotide composed of units called nucleotides. A nucleotide has three components: a sugar molecule, a phosphate group, and a nitrogenous base.</em></u>
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<u><em>If i'm right Mark Me brain, give 5 stars and a thank you</em></u>
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I believe the answer is B. Heart
Answer:
Most of the energy in the Earth system comes from just a few sources: solar energy, gravity, radioactive decay, and the rotation of the Earth. Solar energy drives many surface processes such as winds, currents, the hydrologic cycle, and the overall climate system.
Explanation:
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Answer:
False
Explanation:
If I help please mark as brainliest
<span>I believe it was 300 BC.</span>
