The aorta carries oxygen rich blood away from the heart.
The pulmonary artery transports deoxygenated blood from the heart to the lungs.
The inferior vena cava carries deoxygenated blood from the lower body to the heart.
The coronary artery branches from the aorta and provide oxygen to the heart muscles.
Protein expression refers to the way in which proteins are synthesized, modified and regulated in living organisms.
Hope this helps :D
If the element has not become an ion yet, then there is 73 electrons.
Number of protons = number of electrons**
**only when the element has not form an anion or cation.
the answer is A. atherosclerosis because veins mess with nerve system and arterio does something with arteries