<span>Pulmonary vein
Pulmonary circulation is the movement of blood starting from the heart, where deoxygenated, or carbon dioxide-filled, blood leaves from the right ventricle and through the pulmonary valve, then into the left and right pulmonary arteries and arrives at the lungs. During the process of respiration, the carbon dioxide is released and oxygen is added to the blood. </span>
Answer:
the answer is no a thanks
Reproductive isolation is when 2 organisms can not mate and produce viable offspring. Once 2 organisms are reproductively isolated, this is considered speciation event.
The ones that still have the will to live
Net primary productivity (NPP) can be defined as the amount of energy made available by plants to animals, only at the herbivore leve. The NPP of an ecosystem depends on different factors such as the levels of heat, moisture, nutrients available, competition..If the NPP is low (little available food) than animals sparse (have to move to find it).
