Explanation:
1 Pulmonary circulation
2 supply of nutrients and the removal of waste
3 cardiovascular system
4 systemic circulation
5 heart
7 blood
The gradual abundance of oxygen (by product of photosynthesis) made it possible for aerobic organisms to grow more and evolve.
Hope that helps!
There are 20 different types of Pringles
Energy is used to create matter.
Converts hydrogen atoms into helium.
