What are the building blocks of proteins?
a. polysaccharides
b. amino acids
c. glucose molecules
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d. nucleic acids

B. amino acids

Explanation: Proteins are important macromolecules for cells, they carry out functions as structural blocks, enzymes for metabolism, receptors, antibodies, etc. They are made of aminoacids bond to each other by peptidic bonds and the aminoacidic sequence determine the folding of the protein and its function.

the  frequency of a wave represents  the number of wavelengths that pass a specific point per second. the unit for  frequency  is hertz (hz).

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