Use the same information to answer the questions
that follow
Evolution and Classification
What three things provide evidence for the genetic
relationships among organisms?
DONE

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.  

answerscaffolding proteins;