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.
Answer - Ground water erosion is a type of carbonic acidic water. That goes into the holes thru the soil and pretty much cracks thru rocks.
They are both are types of explanations.
Answer:
they dont move that quick
ages ago if u type on google the map of the country it will be different to how it is now.
Answer:
Competition between individuals of different species is known as interspecific competition.
