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.

Respuesta :

masonpierce67 masonpierce67

17-02-2021

Answer: True

Explanation:

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queenlily5 queenlily5

04-03-2021

Answer:

true

Explanation:

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