Answer:
8
Explanation:
(-3-2) and (3+10) are in parenthesis, so solve them before adding them. Then, take negative five from the left and 13 from the right and add them together. you get 8
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.
Answer:b)lubricating surfaces
Explanation:took it on edge hope this helped
