DNA supports evolution because all life on Earth carries DNA, and evolution happens only after DNA changes. These changes are called mutations and happen spontanoulsy from flawed DNA copying or from mutagens, such as X-rays or chemicals.
Heterogeneous, because you can take out or sort the ingredients in all three into separate parts
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Answer: It indicates the direction of the reaction
I hope this helped!
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- Zack Slocum
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A is the answer hope i helped
