PLZ HEL How does the structure of a protein compare to the structure of a nucleic acid? Proteins are composed of repeating units, while nucleic acids are composed of non-repeating units.
Proteins and nucleic acids both have an R group which give them unique characteristics.
They are both composed of repeating units called monomers.
Proteins are composed of ring like structures while nucleic acids are branching.

the right answer is a. skin cells forming from sunlight.

the liver is an organ endowed with a fantastic ability to regenerate

. thus, if a hepatectomy (ablation) of 70% of the hepatic mass is performed in the rat, there is complete recovery in 7 to 10 days.

prokaryotes are beings that have existed since the existence of life on earth, and do not come from another realm.

ribosomes are organelles that exist naturally in eukaryotes, either in free form or attached to the endoplasmic reticulum.

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