Lucas has to take a quiz at school abbout the lymphatic and immune system. Choose the correct way to complete each sentence. Vocabulary Quiz

are tiny organisms not visible to the naked eye and inciude bacteria, viruses, and protozoans
___are a type of blood cell that protects the body from disease, circulates in the lymphatic vessels and resides in lymphatic organs.
The two main types of leukocytes are lymphocytes and
,which effectively eat up bacteria and diseased cells
1. Microorganisms or reed steinberg cells

2. Erythrocytes or lymphocytes

3.phagocytes or thrombocytes