molecules don't have charged regions and are hydrophobic.

In the water cycle , when does water undergo a chemical change

Fungi are classified into how many groups? a. 1 group b. 2 groups c. 3 groups d. 4 groups

The current thought on the structure of the cell membrane is: a. a static phosphate sandwich of lipids b. a fluid-mosaic of phospholipids and proteins c. a bilayer of proteins with static lipid molecules d. an impermeable bilayer of protein molecules e. a static and permeable phospholipid single layer