epithelial layers contain no blood vessels, so they must receive nourishment via diffusion of substances from the underlying connective tissue , through the basement membrane.
Hope this helps!!
Here’s your answer..
The tilt of earth gives us our four season. (The other answer is wrong, trust me i checked my answer and looked it up)
♥ This is when you are applying to much pressure for to long of a time on a certain part of skin, causing you to cut the blood off in flow. (No not all the way, just enough to slow it down)
Absorption of heat by breaking down hydrogen bonds
