organisms are classified as either prokaryotes or eukaryotes. Which of the following do the cells of all prokaryotes and eukaryotes contain?

Ribosomes

Explanation:

Both prokaryotic and eukaryotic cells contain ribosomes. I had trouble with this question too! Ribosomes are necessary for DNA replication, which is a necessary step for both kinds of cells.

A plasma membrane and cytoplasm

Explanation:

i think the answer is

mass

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