In order for the process of translation to begin, a strand of messenger RNA must

A. transform into a strand of transfer RNA.
B. disassemble a strand of transfer RNA.
C. join with a strand of transfer RNA.
D. duplicate a strand of transfer RNA.

the missing space is phylum

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.