The nucleus is an organelle that acts like a control center and directs cell activity.
I believe the answer to 11 is that multicellular organisms are made up of multiple cells and unicellular organisms are made up of one cell.
Answer:
DNA and RNA both pair guanine to cytosine. In RNA, thymine which is pair with adenine in DNA, is replaced with uracil
Explanation:
<span>peripheral nervous system
hope this helps
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