Which of the following is not true of a hypothesis? a. It must be testable.
b. It must be based on available data.
c. It should be as complex as possible.
d. It must explain all current observations.

c. It should be as complex as possiblethe others seem to be true.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

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.