Answer:
False.
Explanation:
The radiation weighting factor for x-rd is 1.0.
The answer is called encapsulated. Hope this helps, please don't forget to say thanks.
Active transport: Movement of materials across a membrane that requires an input of energy from a cell. Movement of material against the concentration gradient (from low concentration to high concentration)
Passive transport: Movement of materials across a membrane that does not require energy from the cell. Movement of material against the concentration gradient (from high concentration to low concentration)
Hope this helps!
Answer:
It prevents harmful substances from entering a cell.
Explanation:
