White Blood Cells, , Defends the body against infection , Has a nucleus , Part of the immune system, Leukocyte, Red Blood Cells, , Transports oxygen , Biconcave shaped disc, Contains hemoglobin , Erythrocyte, Platelets, , Helps with blood clotting , Closes the wound preventing bacterial entry , Cell fragments (broken ________), Thrombocyte.

Blood Cells Structure & Function

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