Epithelial, Connective, Muscular, and Nervous
I'm not sure what you mean by "compartments", but the cardiovascular system consists of the heart, blood vessels, and approximately 5 liters of blood.
Answer:
-It ensures life on Earth can exist.
-It is used by plants for photosynthesis.
-It is the main component of many biological components, including blood.
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Answer:
A sexual reproduction it is mostly send in single sel organisms
