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.
Answer:
The chemical compound used as energy in the plant is Glucose. Glucose is the plants form of sugar aka food. The plant uses glucose to grow. Hope this helped. Please mark brainiest
Blood vessels expand during hot weather and retract/ tighten in cold weather
Answer:
A. Bones provide structure and support to the body, while muscles move the bones.
Explanation: