It has two phosppholipid layers that are either hydrophobic and hydrophillic the function is to protect thing from coming in and out
Answer:
Due to its spreading nature.
Explanation:
Transboundary environmental threats like pollution is a problem for both parties i. e. one that is producing pollution and the other which is not producing it, because pollution can't remain at one place and spread from one part to another part of the earth due to open environment. So due to its spreading, it affected both the producing and non-producing parties.
Controls what substances can move in and out of the cell. it also protects the cell from its surroundings.
