I think it is C. biosphere because that is where life lives. Hope this helps!
Answer:
Channel protein.
Explanation:
Channel protein have gate that opens and close which allow the passage of polar substance or ions to move to permeable membrane of the cell by diffusion. They are water filled and allow the movementof charged molecules inside and outside the cell membrane i.e polar molecules move through non polar bilayer of the cell membrane.
The answer is A, in damp soil or rotting material
Since for it to be in scientific notation it has to be between 1 and 10. So what I did is move the decimal point over the left six times to get 5.098 x 10^6. So that is the answer, hope i helped you out.
