Phoebe is taking samples to determine the populations of aquatic life in different areas of a lake. she takes samples from different areas of the lake and finds the
marine life listed in the chart below. what can phoebe infer from the data in the table?

synapse nervous system

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.