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Sunny_sXe [5.5K]
3 years ago
14

What are several defenses that keep pathogens from getting inside the body

Biology
1 answer:
lawyer [7]3 years ago
8 0

Answer:

The body has two lines of natural defense to protect against infection. The first are physical barriers, such as the skin, body secretions and mucous membranes. The second line of defense is the immune system. Specialized immune cells coordinate and execute attacks to kill germs that make it past the body's physical barriers.

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Answer:

1. Surface (substratum) is preconditioned by environment molecules.

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2.Quorum sensing and the establishment of the extracellular matrix commences as microbes attach more stably.

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Explanation:

Biofilm is a process in which microorganism irreversibly attach and grow on the surface to produce extra cellular polymers that facilitate formation of matrix. The biofilm process takes three days for the formation after which thickness of plaque increases. There are 4 main steps in biofilm formation. Surface is preconditioned by environment molecules. The microbes attach the preconditioned surface. Establishment of extra cellular matrix and finally biofilm matures.

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3 years ago
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olga nikolaevna [1]

Answer:

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