The blood of vertebrates contains a large number of cells that participate in both the innate and adaptive immune responses.To what group of blood components do these cells belong?

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White blood cells, also known as leukocytes, are responsible for participating in both the innate and adaptive immune responses. Red blood cells carry oxygen, endothelial cells line the blood vessels, and blood platelets are involved in blood clotting.

The Blood of Vertebrates Contains a Large Number of Cells