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Circulatory System
The body system responsible for the flow of blood, nutrients, oxygen, carbon dioxide, and other substances to and from cells.
Mammalian
Relating to mammals, a class of warm-blooded vertebrate animals characterized by the presence of mammary glands which females use to feed their young.
Three-chambered Heart
A type of heart structure found in amphibians and reptiles, consisting of two atria and one ventricle.
Circulatory System
The body's network of blood, blood vessels, and heart responsible for pumping blood to all living cells, delivering oxygen and nutrients while removing waste products.
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