I believe that the anwser wouldn be number 3
I hope this gives you a clue.
About 37.2 trillion but it is very hard to determine
Answer:
The pulmonary vein and the jugular vein.
Explanation:
The greatest difference between the pulmonary vein and the jugular vein is that pulmonary vein takes oxygenated blood from both lungs towards the left atrium of heart while jugular vein takes the deoxygenated blood from head back towards right atrium of heart through superior vena cava.
So, the main difference is oxygenated and deoxygenated blood in the above mentioned veins.
That's called telophase, when a new nuclear envelope forms at each pole. The spindle dissolves, and the chromosomes uncoil.