Plants have a cell wall and chloroplasts; animal cells do not have either
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The difference is that thymine is replaced by Uralic in mRNA.
I think the answer would be mid-noon.
Answer:
D.
Explanation:
She's trying to find the affect different shapes have on the distance the plane flies, not the affect different types of paper have on distance. If she were to use different paper for each plane she'd be testing two variables instead of one.
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