Answer:
pulmonary circulation
Explanation:
The pulmonary circulation moves the blood between the lungs and heart. Since the blood carries oxygen the heart pumps it to every body part including the lungs so we can maintain homeostasis.
A chase of cheetahs and lions and how they hunt the same prey and have to compete to get it first.
organization, metabolism, responsiveness, movements, and reproduction.
Photosynthesis and chemosynthesis