Answer:
low gradient, high volume
high gradient, low velocity
high gradient, high velocity
Explanation:
1 Pulmonary circulation
2 supply of nutrients and the removal of waste
3 cardiovascular system
4 systemic circulation
5 heart
7 blood
We are all carbon based organisms , so i would say that carbon is the most important element to us and to all living organisms oxygen and hydrogen are important too but...
but every element is really important to all living things , without one Element we can't function a certain organ , like a puzzle , without one piece it wouldn't be right
The limit of ecosystems to give advantages to people, that is to give biological community administrations, gets from natural cycles of water, nitrogen, carbon, and phosphorus. These procedures have now and again been altogether altered by human movement. Changes have been quicker in the second 50% of the twentieth century than at some other time in recorded mankind's history.
Oxygen is an electronic which can be defined as pure substance..we breath in oxygen and breath out carbon dioxide
