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svetoff [14.1K]
2 years ago
10

The coronary sinus is a collection of veins that drain___ type of blood into the ____.

Biology
1 answer:
Stells [14]2 years ago
4 0

Answer:

less oxygenated blood into the right atrium

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Fossils show that ancestors of the giraffe had shorter necks than the modern giraffe. The evolution of the modern giraffe may be
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