Answer:
The substance moves from low to high concentration, against the concentration gradient.
Explanation:
When molecules move from high to low concentration, it is known as Diffusion. It moves with the concentration gradient and does not require energy.
However, when molecules move from low to high concentration, it is against the concentration gradient and cannot proceed without Energy. This process is called Active transport.
Cell membrane is not thick, it is thin and semi permeable.
Electric motors transform electrical energy into mechanical energy so the answer would be B.
Explanation:
You can't use it because the living cells won't be able to handle the high vacuum conditions.
Hope this helped ;)
Answer:
i think that the wind is responsible
