nether30 nether30
  • 17-02-2021
  • Biology
contestada

A concentration gradient exists when one area has a higher concentration of a substance than another area does.

True or false.

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masonpierce67 masonpierce67
  • 17-02-2021

Answer: True

Explanation:

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queenlily5 queenlily5
  • 04-03-2021

Answer:

true

Explanation:

Answer Link

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