D, A, C
I hope this helps! I like bio
<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 absolute number of molecules of drug required to elicit a response
<h3>
Answer:</h3>
Vertebrates have backbones, while invertebrates do not.
Humans, for example, are vertebrates because we have backbones.