a disease - causing bacteria successfully enters your body, making it past the first and second lines of…

a disease - causing bacteria successfully enters your body, making it past the first and second lines of defense. which barrier will then act on the bacteria?\no chemical\no physical\no biological\no electrical
Answer
Answer:
C. biological
Brief Explanation:
The first line of defense is physical and chemical barriers like skin and mucus. The second - line is non - specific immune responses. The third line of defense, which acts when the first two are breached, is the specific immune response involving biological factors such as antibodies and lymphocytes.