Question

EXO-L here see guys what I found in my 9th class Biology book

They r famous from then when they were not even borned
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Answer 1

Answer:

A membrane is said to be permeable when it allows only certain materials to pass in and out of it. A simple example of permeable membrane is cell wall. A cell wall is a permeable membrane which allows the passage of particular substances while preventing others.

Answer 2

Anyways, you on social media?? ( ╹▽╹ )