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Dominik [7]
3 years ago
8

What is nautical science?

Biology
1 answer:
WARRIOR [948]3 years ago
7 0
Nautical Science refers to the basic knowledge required to safely navigate and operate a ship.
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What is innate immunity? Discuss the barriers associated with innate immunity.
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Answer:

Innate immunity is a nonspecific defense mechanisms that play its role as soon as an antigen appear in the body (it is relatively rapid but nonspecific and because of that it is not always effective)

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The barries of innate immunity are:

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Skin sweat or secretions: Their specific defense is sweat glands and sebaceous glands, and their protective aspect is low ph and washing action.

Mucosal surfaces: they are at the mucosal epithelium, and their protect aspects are nonkeratinized epithelial cells.

Oral cavity: They defend salivary glands through Lysozyme

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Explanation: osteoporosis occurs when there is an imbalance between bone formation and  bone resorption.

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