b is the answer hope this helped
A.
contracts to move substances through the body
D.
breaks down food to acquire nutrients
<u><em>Answer:</em></u>
<em>The nucleus and ribosomes both involve messenger RNA (mRNA) during protein synthesis. The mRNA is made during transcription within the nucleus. The mRNA then travels out to the cytoplasm via a nuclear pore of the nucleus.</em>
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<u><em>Explanation:</em></u>
<em>*Hope this helped*</em>
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The loss of the hydrogen on one molecule produces a negative charge, which is attracted to the positive charge formed by the loss of the hydroxy group from the other molecule.
