Why is the cell membrane considered selectively permeable? Because some materials can come in and some materials must stay out Because some materials can come in and some materials must stay out Because it forms a barrier where all materials can get through Because it forms a barrier where all materials can get through Because it forms a barrier where no materials can get through Because it forms a barrier where no materials can get through

Because some materials can come in and some materials must stay out

Explanation:

Cell membrane is a structure that covers or bounds the cytoplasmic layer of every living cell. It is made up of mostly lipids. According to this question, it is regarded as selectively permeable. This means that it selects what goes into the cell and what comes out.

The cell membrane is capable of this because of its amphipathic nature i.e contains both hydrophilic and hydrophobic regions. Because the cell membrane controls what goes into the cell and what comes out of the cell, it is referred to as selectively permeable as some materials can come in and some materials must stay out.

it is very expensive

explanation:

a. as the temperature increases, the kinetic energy of the gas molecules increases & the molecules move faster & further away from each other.

b. if you decrease the temperature of a fixed amount of gas at constant pressure, the combined gas law reduces to charles's law. in this case, volume will also decrease.