other then the lungs no all of the body parts get oxygen from blood cells
the structure is the difference between the two
1. Birth rate, death rate, immigration and emmigration.
2.Logistic growth takes into account carrying capacity.
3. The measure of organisms that make up a population in a defined area.
4. The number or quantity of people or things that can be conveyed or held by a vehicle or container.
5. Food, availability, water supply etc.
