Answer:
a cell membrane is a biological membrane that separates in interior of all cells from the outside environment which protects the cell from its environment the cell membrane consists of lipid and Blair including cholesterol's and that sit between phoepholipids to maintain their fluidity at various temperatures
Explanation:
hope this helps! ;)
both P waves and S waves can travell through solids.In advance, P waves can travel through gasses too but S waves can't.
There are so many examples for that in different areas, like alkyl silane experiment carried out in our lab recently.
Here's one link: http://www.alfa-chemistry.com/products/alkyl-silane-29.htm