What is the purpose of adding isopropyl alcohol to your solution of dna?

Which organelles are labeled d, and what is one feature that distinguishes them from the other labeled organelles chloroplasts the only organelles that produce sugars from sunlight mosomes, only found in animal and bacterial cells centricles only found in animal cells mitochondra, the only energo-generating structures found in cells

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Which example would the nurse consider to be a part of systems thinking theory?