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Katena32 [7]
3 years ago
13

PLEASE HELP HURRY

Biology
2 answers:
MArishka [77]3 years ago
7 0
I think it’s B. Both contain phosphate group. It’s the most accurate answer in my opinion. Correct me if I’m wrong please
marishachu [46]3 years ago
6 0

Answer:

Option B, they both contain phosphate groups

Explanation:

The structure of nucleic acid consists of backbone made up of  sugar-phosphate. Deoxyribonucleic Acid (DNA) and Ribonucleic acid (RNA) are made up of nucleotides linked to each other by ester bonds. These ester bonds connects the  sugar base of one nucleotide and the phosphate group of the near by nucleotide

Like wise a phospolipid, consists of one glycerol molecule, two fatty acids, and one modified phosphate group with an alcohol.

Hence, option B is correct

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Option A. Increases and decreases of the heart rate result from changes in the activity of the <u>medulla oblongata</u>

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What is medulla oblongata ?

  • Medulla oblongata, also called medulla, the lowest part of the brain and the lowest portion of the brainstem.
  • The medulla oblongata is connected by the pons to the midbrain and is continuous posteriorly with the spinal cord, with which it merges at the opening (foramen magnum) at the base of the skull.
  • The medulla oblongata plays a critical role in transmitting signals between the spinal cord and the higher parts of the brain and in controlling autonomic activities, such as heartbeat and respiration
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