The Behavior observed by 14th century Arab traveler is D) Lack or Veiling
Answer:
Harvey stated that the veins returned blood to the heart
Explanation:
William Harvey provided proof;
That the theory of blood consumption by the body was not correct.
There are two separate blood flow loops
Blood in the veins flow towards the heart with one way blood flow bw=eing maintained by valves in the blood vessels
The correct option is therefore;
'Harvey stated that the veins returned blood to the heart'
Answer:
Last Option: A 1960s Government Computer Network.
A. American-Soviet competition for military dominance
