Answer:
PVR is calculated by the formulae: 
Explanation:
Pulmonary vascular resistance may be defined as the resistance to blood through the pulmonary circulation.
PVR can be determined by the following formula:

Here, PAP is the pulmonary artery pressure, PAOP is pulmonary artery occlusion pressure and CO is cardiac output.
To only allow through certain items, and block the rest.
Do you have any choices? A hypothesis is a <span> supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation. Usually takes the form of an if/then statement. Hope this helps!</span>
B) one professional basketball player is renowned for his athletic abilities and skills.