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Describe and discuss the marine communities of the Ordovician, Silurian, and Devonian. How do they compare with present-day marine communities?
Platelets
Small blood cells essential for blood clotting, helping to stop bleeding by clumping together and forming plugs in blood vessel injuries.
Phagocytize
The process by which cells, especially immune system cells like macrophages, ingest or engulf other cells, bacteria, or particles.
Monocytes
A type of white blood cell that plays a significant role in immunity, inflammation, and tissue repair by differentiating into macrophages and dendritic cells.
Vascular Spasm
A sudden, temporary constriction of a blood vessel, leading to reduced blood flow, which can occur as a response to injury or stress.
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