To only allow through certain items, and block the rest.
B. The processes needed for the cell to take in nutrients.
Hope this helps!
Answer:
its D
Explanation:
Its D cause plants use their roots to get water and the vascualar tissues are found in the root most of the time.
Answer:
Passive Transport - Taking the Easy Road
While active transport requires energy and work, passive transport does not. There are several different types of this easy movement of molecules. It could be as simple as molecules moving freely such as osmosis or diffusion.
