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.
It can be inferred that muscle cells in athletes produce more ATP than muscle cells of those who live sedentary lifestyles.
The macromolecule would probably be the carbohydrate.
I believe the answer is b sorry if I’m wrong
COMPACTION.
Sedimentary rock is a rock formed by layers of sediments settling down together forming one solid rock.
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