Question

Which well (well 1, 2, 3 or 4 going left to right on the well picture) had the largest molecules and which had the smallest molecules?
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Answer 1

Well if + means more organisms, then 4 would be the smallest and 3 would be the biggest

Answer 2

If + means bigger organisms, then 4 would be the biggest and 3 would be the smallest.

Answer 3

i mean molecules* :/

Answer 4

Hope this helped you :D