Answer:
Messenger RNA (mRNA) is a large family of RNA molecules that convey genetic information from DNA to the ribosome.
Explanation:
E. systematic aorta
D. left ventricle
C. left atrium
A. pulmonary artery
B. superior venacava (i’m not sure if this one is right)
Oxygen.
As Oxygen has the highest electron affinity/ negativity of them all.<span />
Yas through elctrochemical signals basically ur right and true X