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Discuss the order of events that occurred during the breakup of Pangaea.
Endocrine Glands
Glands that produce hormones and release them directly into the bloodstream to regulate various body functions.
Semilunar Valves
Heart valves located at the exits of the right and left ventricles, preventing blood from flowing back into the ventricles after it has been pumped out.
Medium Veins
Veins that are larger than venules but smaller than the large veins, carrying blood back towards the heart and often accompanying medium arteries.
Large Veins
Blood vessels that carry blood towards the heart, characterized by their large diameter compared to other venous structures.
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