First one is correct. ...remeber my teacher telling us enzymes never get used
Well the stretchability relates to bubble size because the strechier the gum is the bigger bubble it will be able to make.
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The answer is heterozygous
Answer:
Biological evolution refers to the cumulative changes that occur in a population over time. These changes are produced at the genetic level as organisms' genes mutate and/or recombine in different ways during reproduction and are passed on to future generations.
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