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Answer all questions from this section.

(a) How could the body remove or destroy a bacterium that lands:

(i) On the cornea?
(ii) On the hand?
(iii) In the bronchus?
(iv) In the stomach?

(b) Explain why it is:

(i) Not healthy to sleep in a closed room with many potted plants.
(ii) Dangerous to sleep in a poorly ventilated room with a charcoal burner on.



Answer :

GinnyAnswer

Final answer:

Anatomical barriers, physical removal of microorganisms, bacterial antagonism by normal microbiota.


Explanation:

Anatomical barriers to infection: These are physical barriers that prevent the entry of pathogens into the body, such as the skin and mucous membranes.

Ways to physically remove microorganisms:

  1. Coughing
  2. Sneezing
  3. Vomiting
  4. Diarrhea

Bacterial antagonism by normal microbiota: Normal bacteria in the body can outcompete harmful bacteria, preventing infections. For example, Lactobacillus in the gut helps maintain a healthy microbial balance.


Learn more about Immune System Defense Mechanisms here:

https://brainly.com/question/28270339


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