C. The nervous system sends signals to make muscles move.
I believe your Answer would be:
A: Sister Chromatids.
Explanation:
A sister chromatid refers to the identical copies (chromatids) formed by the DNA replication of a chromosome, with both copies joined together by a common centromere. In other words, a sister chromatid may also be said to be 'one-half' of the duplicated chromosome.
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The answer is Prokaryotes.
Answer:
c chemical fertilizers they are produced vy people used on plants and the run off leads to water sources
I hope this helps the answer is A