What are three molecules that diffuse freely in and out of a cell

So it's going to be obviously oxygen XD        so that's one

Next, it's going to be carbon dioxide, since it has to exit the cell, because it is a waste product            ...so that's two

Finally, it's also going to be something you drink everyday.

*whispers* it's water XD      because of osmosis

So recap:

1) Oxygen             2) Carbon Dioxide        3) Water

hope that helps!! :D

unicellular organisms, like bacteria, are able to perform all life functions within one single cell. multicellular organisms need many different types of cells to carry out the same life processes. each of these special types of cells has a different structure that it perform a specific function.

c is the answer to this question. altitude affects the weather because air molecules evaporate.