There are cold fronts, warm fronts, stationary fronts, and occluded fronts.<span />
Hey there,
Viruses do not belong to kingdoms.
Here's why,
Viruses are unique organisms. They do not belong to any kingdom due to the fact that they are not made up of living cells.
Hope this helps <em><u>-Alycia Larson</u></em>
Direct Observation. Hope this helps!
The most common example is the phospholipid bilayer cell membrane that surrounds every cell in our bodies. Another example of a selectively permeable membrane is the inner membranes of an egg.