Answer:
f. Lipoproteins can be distinguished by their densities and composition.
Explanation: Lipoproteins are special particles made up of droplets of fats surrounded by a single layer of phospholipid molecules. Phospholipids are molecules of fats which are attached to a phosphorus-containing group. They are distinctive in being amphipathic, which means they have both polar and non-polar ends.
Lipoproteins are complex particles with a central core containing cholesterol esters and triglycerides surrounded by free cholesterol, phospholipids, and apolipoproteins, which facilitate lipoprotein formation and function.
Answer: layers
of sheathing
The
brain is protected by the skull and several layers of sheathing
from physical damage and insulate it against extreme temperatures. It is
encapsulated in several layers of connective tissue sheathing known as meninges
protecting fragile neural tissue and insulate the brain from different extreme temperature.
Headaches are often a sign of dehydration. When somebody stays out in the sun too long and starts getting dehydrated their head will start pounding because their is not enough water to keep you from thinking about being cooled down. So the answer would be dehydration.
Hope this helps!
Have a nice day!
Answer:
For energy and growth/ repair
