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:
Muscle rigidity, also known as muscle tension, rigor, or stiffness, is one of the most common causes of muscle pain. It's characterized by the inability of the muscles to relax normally. The condition can affect any of the muscles in the body, causing sharp pain that makes it difficult to move.
Explanation:
1) One drug 7th graders and older should know about is Tylenol with the chemical name Acetaminophen. Tylenol is important because it is used for commonly not only amongst kids but also adults to treat muscle pains and to reduce fever. 7th graders should learn about how much Tylenol is necessary to help treat pains, in order to safely use it when they must.
I will answer more later, but I have to go
