Yes, all biomolecules have their specific monomers, from which they are made.
I believe the bone system that red marrow belongs to is D. Skeletal system.
this is what u usually learn in these grades for technology
Answer:
You take any of the "signs of change in populations of organisms and their environments". For imagine, Australopithecus (early man) turning to Homo sapiens. In that way they could tell that you took this journey.
The pyloric sphincter is compose of smooth muscle and is located between the pylorus in the stomach and duodenum of the small intestine. In digestion, it serves as a valve controlling the flow of food thus it prevents the contents of small intestine backing up into the stomach.
