Answer:
1,5,2,3,4
Explanation:
I'm not sure about this, so take this answer with a grain of salt. I think you would fill in the blanks like this: 1,5,2,3,4.
In an experiment, using the elodea stalk, you are able to expose more underlying tissue and the process can be executed more quickly and it's easy to replicate the natural position for a more realistic result.
hope this helps
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