Identify the structure of the human heart that rises from the pulmonary trunk, connects to the left lung, and conveys venous blood from the heart to the lungs.
a)
left coronary artery
b)
right coronary artery
c)
left pulmonary artery
d)
right pulmonary artery
plz !

Aresearcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (tmv). the cell contents are left in a covered test tube overnight. the next day this mixture is sprayed on tobacco plants. we expect that the plants would ) develop some but not all of the symptoms of the tmv infectionb) develop the typical symptoms of tmv infectionc) not show any disease symptomsd) become infected, but the sap from these plants would be unable to infect other plants