B 10 points
Provided are satellite photos from two different years of the same beach. The point of sand, indicated with an arrow, has shifted due to wave action. If similar rates of
erosion and deposition occur, where would be the logical place to expect the point of sand to be located by 2015?

these muscles maintain the blood pressure in the vessels. the smooth muscles are innervated by nerves of the autonomic nervous system. when the muscles contract, they cause vasoconstriction of the vessels and increase blood pressure. when the muscles relax, they enable vasodilation of the   blood vessels hence reduce blood pressure.  

answer; endoplasmic reticulum;