Current location - Health Preservation Learning Network - Health preserving class - The following statement is correct: () A. The structural levels of living systems include all levels from atoms and molecules to the biosphere. B. Prokaryotes have both self and self.
The following statement is correct: () A. The structural levels of living systems include all levels from atoms and molecules to the biosphere. B. Prokaryotes have both self and self.
A, the most basic structural level of life system is cells, not atoms and molecules, and A is wrong;

B. There are both autotrophs (such as cyanobacteria and nitrifying bacteria) and heterotrophs (such as Escherichia coli) in prokaryotes, and B is correct;

C, the final product of protein hydrolysis is amino acid, C is wrong;

D, the basic unit of RNA is ribonucleotide, D error.

Therefore, choose: B.

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