1. specific: tailored to specific threats (ie specific antigens); nonspecific: defenses that deny entrance to, or limit the spread of, microorganisms or other environmental agents to the body

2. skin, hair (reduce contact surface and abrasions), sweat glands (constantly flushing the surface, contains lysosomes), internal epithelia (mucus elevator, stomachacid secretions, urine to flush stuff out)

3. a cell that phagocytoses; they patrol tissues while removing cellular debris and responding to invasions by foreign compounds or pathogens

4. the constant monitoring of normal tissues; NK cells

Why do I rock so completely awesomely?

“Cafe Culture” is an interesting peek into the world of cafes.

5. small proteins released by activated lymphocytes, macrophages, and tissue cells infected with viruses; normal cells respond to these interferons by producing proteins that interfere with virus replication inside the cell; they also stimulate macrophages and NK cells