The most important property of the cell membrane<span> is its selective permeability: </span>some substances<span> can </span>pass through<span> it freely, but others cannot. Small and nonpolar (hydrophobic) molecules can freely </span>pass through<span> the </span>membrane<span>, but charged ions and large molecules such as proteins and sugars are barred passage. </span>
Answer:
To think in picture is like visual thinking. When you are thinking in pictures you are have a visual image but instead of having it in front of you, it is. more like thinking about it inside you head. An example would be when people think of things like let's say dogs. Most people will think in pictures of an dog inside their mind. They will visualize how a dog would run around, and play fetch, etc.
I believe it’s called perculation
Distance between corresponding points 2 consecutive waves